The Chair of the Federal Reserve occupies one of the most consequential positions in global finance because the role sits at the intersection of monetary policy, financial regulation, and market psychology. While the Chair does not unilaterally set interest rates, the position shapes how policy debates are framed, which risks are emphasized, and how the central bank communicates with markets. Even subtle shifts in leadership can alter expectations across bonds, equities, currencies, and credit markets.
Understanding the real scope of a Fed Chair’s influence requires separating institutional power from political perception. A Trump-appointed Chair would operate within a system deliberately designed to limit political control, yet still possess meaningful agenda-setting authority. The distinction between what can change and what cannot is central to assessing potential market impacts.
The Fed Chair’s Formal Authority
The Federal Reserve Chair serves as the public face and internal coordinator of the Federal Open Market Committee (FOMC), the body that sets monetary policy. The FOMC consists of the seven Board of Governors and five regional Federal Reserve Bank presidents, each with one vote. Policy decisions, including interest rate changes, are determined by majority vote, not by the Chair alone.
Despite this constraint, the Chair wields substantial influence through control of meeting agendas, leadership of internal staff, and guidance of policy frameworks. Agenda-setting power matters because it determines which risks receive attention, such as inflation persistence, labor market slack, or financial stability. Over time, this influence can shape consensus rather than dictate outcomes.
Constraints That Preserve Fed Independence
Federal Reserve independence refers to the legal and operational separation between monetary policy decisions and short-term political pressures. Governors serve staggered 14-year terms, and the Chair serves a renewable four-year term, reducing susceptibility to electoral cycles. Funding is generated internally rather than through congressional appropriations, further insulating policy decisions.
A Trump-appointed Chair cannot directly finance government spending, target asset prices, or follow presidential instructions. Any attempt to overtly politicize rate decisions would face resistance from other FOMC members, legal safeguards, and reputational costs that could destabilize markets. These constraints are structural, not discretionary.
Where a Chair Can Shift Policy Priorities
Within these boundaries, a Chair can influence how the Fed interprets its dual mandate of price stability and maximum employment. For example, tolerance for above-target inflation, emphasis on wage growth, or sensitivity to financial market volatility are judgment calls rather than mechanical rules. These judgments affect the timing and pace of interest rate changes.
A Trump-appointed Chair might plausibly prioritize growth, credit availability, or manufacturing employment more explicitly, reflecting broader economic narratives associated with the administration. Such shifts would not eliminate inflation control but could alter the threshold for tightening or easing policy. These are directional biases, not guaranteed outcomes.
Regulatory Oversight and Supervision
Beyond interest rates, the Fed Chair plays a critical role in bank regulation and supervision. This includes oversight of capital requirements, stress tests, and enforcement intensity for large financial institutions. Capital requirements define how much equity banks must hold to absorb losses, directly affecting credit creation.
A change in leadership could lead to a lighter or heavier regulatory stance, particularly regarding systemic risk and compliance burdens. While major rule changes require board approval and interagency coordination, supervisory tone can shift more quickly. Markets often respond to these signals well before formal rules are altered.
Communication and Market Expectations
Perhaps the Chair’s most immediate influence lies in communication. Forward guidance, which refers to signals about the future path of policy, shapes financial conditions even without immediate action. Language choices in press conferences and official statements can move yields, equity valuations, and currency prices within minutes.
A Chair perceived as politically aligned, dovish on inflation, or skeptical of aggressive tightening could prompt markets to reprice long-term interest rate expectations. These reactions may occur even if actual policy changes never materialize. In this way, credibility and perception become as influential as formal authority.
Trump’s Stated Priorities and Past Friction With the Fed: What History Signals—And What It Doesn’t
Understanding how a Trump-appointed Federal Reserve Chair might behave requires separating documented historical behavior from speculative extrapolation. Public statements, prior appointments, and episodes of conflict provide context, but they do not mechanically predict future policy outcomes. Institutional design, legal constraints, and macroeconomic conditions materially limit any single actor’s influence.
Public Criticism of Monetary Tightening
During his presidency, Donald Trump repeatedly criticized the Federal Reserve for raising interest rates, particularly in 2018 when the economy was expanding and inflation remained contained. These critiques focused on the belief that higher rates were restraining growth, weakening equity markets, and placing U.S. firms at a competitive disadvantage. The core concern was not inflation control but the perceived cost of preemptive tightening.
This history suggests a preference for accommodative monetary policy, meaning lower interest rates or slower rate increases to support growth. However, public criticism does not equate to operational control. Even during periods of intense rhetoric, the Federal Open Market Committee (FOMC), the Fed’s rate-setting body, continued to act based on its internal assessment of inflation risks and financial stability.
Appointments as a Signal, Not a Directive
Presidential influence over the Fed is exercised primarily through appointments, not direct intervention. Trump’s prior appointments included individuals with diverse views, ranging from traditional policy frameworks to more growth-oriented perspectives. This underscores that personnel choices can tilt the internal debate without dictating outcomes.
A future Chair nominee aligned with Trump’s economic narrative might emphasize employment, credit access, or market sensitivity in policy discussions. Yet once confirmed, the Chair operates within a committee structure where each voting member has independent authority. Historical evidence shows that Chairs cannot unilaterally impose rate paths contrary to committee consensus.
Fed Independence: Formal Protection Versus Informal Pressure
The Federal Reserve’s independence is grounded in statute, including fixed terms for governors and insulation from direct budgetary control. These features prevent dismissal over policy disagreements and shield day-to-day decisions from political cycles. No modern precedent exists for a president successfully overriding these safeguards.
That said, independence is not binary. Persistent political pressure can influence the environment in which decisions are made, particularly through expectations about reappointment or public scrutiny. Such influence is indirect and uncertain, and its impact depends heavily on the individual credibility and institutional commitment of the Chair.
What History Does Not Confirm
Past friction does not demonstrate that a Trump-appointed Chair would ignore inflation, subordinate policy to political demands, or abandon established analytical frameworks. Inflation targeting, data dependence, and risk management are deeply embedded in the Fed’s culture and processes. Departures from these norms would require broad institutional support, not merely alignment with presidential preferences.
Historical experience therefore points to directional bias rather than deterministic change. It indicates where pressure may be applied and which trade-offs may be emphasized, but not that institutional constraints will be breached. Distinguishing between these two is essential for interpreting market reactions and policy expectations.
Institutional Guardrails: Legal Independence, FOMC Structure, and Limits on Political Control
The distinction between influence and control becomes clearer when examining the Federal Reserve’s institutional design. The legal framework deliberately disperses authority, slows decision-making, and limits the ability of any single actor—political or internal—to redirect policy abruptly. These guardrails are central to understanding how far a Trump-appointed Chair could realistically shift outcomes.
Statutory Independence and Term Structure
Federal Reserve independence is codified in law, most notably through staggered terms for the Board of Governors. Governors serve 14-year terms, while the Chair and Vice Chair are appointed to renewable four-year leadership terms but cannot be removed for policy disagreements. This structure ensures continuity across administrations and prevents rapid ideological turnover.
Operational independence is reinforced by budgetary autonomy. The Federal Reserve finances itself through earnings on its balance sheet rather than congressional appropriations, insulating monetary policy from fiscal bargaining. This separation sharply limits the capacity of elected officials to exert direct leverage over interest rate decisions.
The FOMC as a Collective Decision-Making Body
Monetary policy is set by the Federal Open Market Committee (FOMC), which includes the seven Board governors and five of the twelve regional Federal Reserve Bank presidents. Each voting member holds an independent vote, and policy outcomes require majority support rather than deference to the Chair. The Chair sets the agenda and frames discussions, but does not possess formal veto power.
This structure matters because regional presidents are not presidential appointees and often bring perspectives shaped by local economic conditions rather than national politics. Their presence constrains any attempt to prioritize short-term growth or market outcomes at the expense of inflation control without broad agreement. As a result, shifts in tone or emphasis typically occur gradually rather than through abrupt policy reversals.
Limits on Presidential Control After Appointment
Once confirmed, a Fed Chair is legally insulated from direct presidential instruction. Public criticism, private persuasion, or signaling through media channels may create reputational pressure, but these tools do not translate into binding authority. Historical episodes of political criticism have not produced sustained deviations from the Fed’s dual mandate of price stability and maximum employment.
Reappointment considerations can introduce subtle incentives, but their effect is neither uniform nor predictable. Chairs nearing the end of a term may weigh legacy, institutional credibility, or long-term inflation outcomes more heavily than political favor. The uncertainty of future political leadership further weakens reappointment as a reliable channel of influence.
What Can Change Within These Constraints
While institutional barriers prevent direct control, they do not freeze policy priorities entirely. A Trump-appointed Chair could influence how risks are framed, which data receive greater emphasis, and how aggressively the Fed responds to labor market softness or financial conditions. These shifts affect the reaction function, meaning the way policy responds to incoming data, rather than overriding the mandate itself.
Market expectations often respond more to communication than to immediate rate changes. Adjustments in forward guidance, press conference tone, or tolerance for temporary inflation overshoots can alter financial conditions without breaching institutional norms. These changes are plausible within existing guardrails, but they remain constrained by committee dynamics, statutory mandates, and the Fed’s long-standing commitment to credibility.
How a Trump-Appointed Chair Could Shift Monetary Policy Priorities Without Changing the Mandate
Within the institutional constraints already outlined, the most meaningful influence of a Trump-appointed Fed Chair would operate through prioritization rather than formal authority. The dual mandate of price stability and maximum employment remains fixed in statute, but the relative weight placed on each objective can vary over time. These variations shape how the Federal Open Market Committee (FOMC) interprets economic data and calibrates its policy response.
Rather than redefining goals, a new Chair can adjust the lens through which risks are evaluated. This distinction is critical for understanding how policy can evolve without violating legal or institutional boundaries.
Shifting the Balance Between Inflation Risks and Growth Risks
A central channel for change lies in how the Chair frames trade-offs between inflation control and economic growth. Monetary policy operates under uncertainty, requiring judgments about whether inflation risks or downside growth risks deserve greater attention at a given moment. A Trump-appointed Chair could signal greater concern about restraining growth or employment losses, even while formally committing to the inflation target.
This does not imply abandoning inflation control, but it may raise the threshold for additional rate hikes or accelerate the case for rate cuts when economic momentum weakens. Such shifts influence policy timing rather than ultimate objectives.
Influence on the Reaction Function and Interest Rate Decisions
The reaction function refers to how policymakers systematically respond to incoming economic data. While not explicitly codified, it reflects shared assumptions about acceptable inflation deviations, labor market slack, and financial stability risks. A Chair plays a key role in shaping this framework through agenda-setting and consensus-building within the FOMC.
Under a Trump-appointed Chair, the reaction function could become more tolerant of inflation remaining modestly above target if employment remains strong or financial conditions tighten. Conversely, policy could respond more quickly to signs of labor market deterioration, even if inflation has not fully returned to target.
Communication Strategy and Market Expectations
Monetary policy affects the economy largely through expectations, making communication a powerful tool. Forward guidance, which refers to official signals about the likely future path of interest rates, can shift financial conditions without immediate changes to policy rates. A Chair’s tone, emphasis, and language discipline therefore matter as much as formal decisions.
A Trump-appointed Chair might emphasize flexibility, optionality, or data dependence in ways that markets interpret as a lower barrier to easing. These signals can reduce long-term interest rates or loosen financial conditions even before policy action occurs, amplifying their economic impact.
Regulatory and Supervisory Priorities as a Complementary Channel
Although distinct from monetary policy, bank regulation and supervision influence credit conditions and financial risk-taking. The Fed Chair has substantial influence over regulatory priorities, including stress testing, capital requirements, and supervisory intensity. Changes in this area can indirectly support growth by easing constraints on lending.
A Chair aligned with deregulatory preferences may favor tailoring rules to bank size or reducing supervisory burdens, especially for mid-sized institutions. While these shifts do not alter interest rate policy directly, they can reinforce a growth-supportive policy environment.
Preserving Independence While Reframing Policy Emphasis
Crucially, none of these adjustments require weakening formal Fed independence. The Chair would still operate within committee-based decision-making, public accountability, and statutory objectives. However, independence does not imply uniformity across leadership regimes; it allows discretion in how mandates are pursued.
As a result, markets may perceive a Trump-appointed Chair as incrementally more growth-sensitive or less inclined toward preemptive tightening. Whether those perceptions translate into durable policy shifts would depend on inflation dynamics, committee consensus, and the Fed’s ongoing credibility with the public and financial markets.
Interest Rate Strategy Scenarios: Faster Cuts, Higher Tolerance for Inflation, or Status Quo?
Against this backdrop, the most consequential question for markets is not institutional independence, but how leadership preferences could shape the reaction function guiding interest rate decisions. A reaction function describes how policymakers adjust rates in response to inflation, employment, and financial conditions. While the Federal Open Market Committee (FOMC) votes collectively, the Chair exerts disproportionate influence over agenda-setting, framing trade-offs, and signaling acceptable policy risks.
Three broad interest rate strategy scenarios emerge under a Trump-appointed Chair, each consistent with formal constraints but differing in emphasis and tolerance for uncertainty.
Scenario One: Faster and More Front-Loaded Rate Cuts
One plausible shift would be a lower threshold for initiating rate cuts once inflation shows credible signs of deceleration. Rather than waiting for inflation to return fully to target, policy could pivot toward supporting growth as soon as downside risks to employment or financial stability become more prominent.
This approach would not violate the Fed’s dual mandate, which requires balancing price stability and maximum employment. However, it would place greater weight on avoiding recessionary outcomes, especially if inflation is perceived as structurally easing due to supply-side normalization or productivity gains.
Markets could interpret this stance as a willingness to accept near-term inflation risks in exchange for macroeconomic stabilization. That perception alone can ease financial conditions by lowering long-term yields and reducing borrowing costs before any formal rate cut occurs.
Scenario Two: Higher Tolerance for Inflation Deviations
A second possibility involves a more permissive interpretation of the Fed’s 2 percent inflation target. Rather than treating modest overshoots as policy failures, a Trump-appointed Chair might frame them as transitional or acceptable in the context of strong growth or external shocks.
This would represent a shift in emphasis rather than a formal change in the inflation target, which would require broad institutional consensus and extensive communication. The key distinction is rhetorical and analytical: how forcefully inflation risks are emphasized relative to employment and output risks.
Such an approach could reduce the likelihood of preemptive tightening, meaning rate hikes implemented before inflation becomes entrenched. However, it would also test the Fed’s credibility if inflation expectations, defined as households’ and firms’ beliefs about future inflation, began to drift upward.
Scenario Three: Continuity and Committee-Constrained Status Quo
The most institutionally grounded outcome is continuity with existing frameworks, particularly if inflation dynamics remain volatile or if the FOMC remains internally divided. The Chair cannot unilaterally dictate interest rate policy and must build consensus among governors and regional bank presidents.
In this scenario, changes would be incremental and largely confined to communication style rather than policy substance. Forward guidance might emphasize patience and flexibility, but actual rate decisions would continue to follow established data thresholds.
This outcome would underscore the durability of Fed processes and the limiting role of institutional checks. It would also suggest that market expectations of dramatic policy change were overstated, reinforcing the Fed’s credibility as a rules-informed, not personality-driven, institution.
Market Expectations and the Power of Perceived Bias
Regardless of which scenario ultimately unfolds, market expectations may adjust well before policy actions materialize. Investors continuously infer policymakers’ preferences, risk tolerances, and priorities from speeches, testimony, and strategic appointments within the Federal Reserve System.
Even subtle signals of a growth-leaning bias can compress term premiums, which are the extra yields investors demand for holding long-term bonds. This dynamic highlights why leadership transitions matter, even when formal policy constraints remain firmly in place.
The distinction, therefore, lies between confirmed institutional limits and plausible shifts in emphasis. A Trump-appointed Chair could not redefine the Fed’s mandate, but could meaningfully influence how aggressively, how quickly, and with what stated objectives interest rate tools are deployed.
Regulatory and Supervisory Implications: Banking Rules, Financial Stability, and Deregulation Risks
Beyond interest rate policy, the Federal Reserve Chair exerts substantial influence over bank regulation and supervision, an area where leadership preferences can translate into more tangible institutional shifts. While statutory authority is shared with other regulators, including the Federal Deposit Insurance Corporation and the Office of the Comptroller of the Currency, the Fed plays a central role in overseeing large bank holding companies and systemically important financial institutions.
In this context, perceptions of a Trump-appointed Chair matter not because of unilateral power, but because regulatory priorities are more discretionary than monetary policy rules. Supervisory intensity, enforcement posture, and tolerance for balance sheet risk can all shift without changes to underlying law, making this domain especially sensitive to leadership philosophy.
Supervisory Tone and the Interpretation of Banking Rules
Bank supervision refers to the ongoing examination and monitoring of financial institutions to assess safety, soundness, and compliance with regulations. Even when formal rules remain unchanged, the rigor with which examiners apply stress tests, capital requirements, and liquidity standards can vary meaningfully across leadership regimes.
A Chair inclined toward regulatory relief could encourage a more principles-based supervisory approach, emphasizing bank management judgment over prescriptive constraints. This could translate into greater flexibility in capital buffers, which are reserves banks hold to absorb losses, or in liquidity coverage ratios, which measure a bank’s ability to meet short-term funding stress.
Such shifts would not repeal post-crisis safeguards, but they could soften their practical impact. Over time, this may allow banks to operate with higher leverage, defined as the use of borrowed funds to amplify returns, increasing profitability during expansions while elevating vulnerability during downturns.
Stress Testing, Resolution Planning, and Financial Stability Tradeoffs
The Fed also administers stress tests, formally known as the Comprehensive Capital Analysis and Review, which evaluate whether large banks can withstand severe economic shocks. These exercises are partly quantitative but also depend on scenario design, modeling assumptions, and supervisory judgment.
A leadership team more focused on growth and credit availability could favor less severe stress scenarios or place greater weight on banks’ internal risk models. While this may reduce compliance costs and encourage lending, it could also weaken the early-warning function of stress testing, particularly if macro-financial risks are understated.
Similarly, oversight of resolution planning, often referred to as “living wills,” involves judgment about how credible banks’ failure plans are under stress. A lighter-touch approach could reduce near-term regulatory friction but increase uncertainty about how losses would be absorbed in a systemic crisis.
Deregulation Signals and Market Discipline
Regulatory stance also shapes market expectations about implicit government support for the banking system. If investors perceive a shift toward deregulation, they may infer a higher tolerance for risk-taking or a greater likelihood of future intervention during stress episodes.
This dynamic can weaken market discipline, which is the pressure investors and creditors exert on banks to manage risk prudently. Lower funding costs driven by perceived regulatory leniency may encourage balance sheet expansion, even as underlying resilience erodes.
Importantly, these effects would emerge gradually and indirectly. Institutional constraints, interagency coordination, and congressional oversight limit how far the Fed can move on its own, but signaling effects can still influence behavior well before formal changes are implemented.
Institutional Limits and Uncertain Policy Shifts
It is critical to distinguish confirmed constraints from plausible but uncertain outcomes. The Fed Chair cannot dismantle the post-2008 regulatory architecture without legislative action, nor can supervision be fully detached from statutory mandates tied to financial stability.
However, within those boundaries, leadership can shape regulatory culture, enforcement priorities, and risk tolerance at the margin. A Trump-appointed Chair could therefore influence the balance between resilience and efficiency, not by rewriting rules, but by reframing how strictly they are applied and why they matter.
For markets, the key variable is not deregulation per se, but the perceived trajectory of supervisory rigor. As with monetary policy, expectations about regulatory stance may adjust faster than observable outcomes, reinforcing the broader theme that leadership transitions matter most through emphasis, signaling, and interpretation rather than abrupt institutional change.
Market Expectations and Credibility: How Investors Reprice Policy Under a New Chair
Leadership transitions at the Federal Reserve tend to influence markets less through immediate policy changes than through shifts in expectations. Investors continuously infer how a new Chair interprets the Fed’s mandate, weighs risks, and responds to economic data. These inferences affect asset prices well before any formal vote on interest rates or regulatory rules.
Expectations matter because monetary policy operates largely through credibility. Credibility refers to the degree to which markets believe the central bank will follow through on its stated objectives, particularly inflation control and financial stability. A new Chair can alter that belief set even while operating within the same legal framework.
Repricing the Reaction Function
Markets focus on the Fed’s reaction function, which describes how policymakers are expected to adjust interest rates in response to inflation, employment, and financial conditions. A Chair perceived as more tolerant of inflation or more sensitive to growth risks may lead investors to expect slower rate hikes or earlier easing. Conversely, a reputation for inflation aversion can steepen expectations for tighter policy during expansions.
These perceptions are reflected quickly in interest rate futures and Treasury yields. Changes in the expected path of short-term rates can occur without any change to the current policy rate, underscoring how leadership affects pricing through interpretation rather than action.
Term Premia and Long-Run Credibility
Beyond near-term rate expectations, investors also reassess term premia, which are the extra yields demanded to hold longer-maturity bonds instead of rolling over short-term debt. Term premia embed uncertainty about inflation, policy consistency, and institutional independence over time. A Chair seen as politically aligned or less committed to the Fed’s inflation objective could raise these premia, pushing up long-term yields even if short-term rates remain unchanged.
Importantly, this channel reflects credibility rather than control. The Chair cannot dictate long-term rates, but perceptions about future policy discipline influence how much compensation investors demand for duration risk.
Forward Guidance and Communication Risk
Forward guidance is the Fed’s practice of signaling its likely future policy stance to shape expectations today. A change in leadership can introduce communication risk, meaning greater uncertainty about how statements, projections, or press conferences should be interpreted. Markets may initially discount official guidance more heavily until a consistent communication pattern is established.
Under a Trump-appointed Chair, scrutiny would likely intensify around language related to inflation tolerance, growth trade-offs, and financial conditions. Even subtle shifts in tone can lead investors to reprice risk assets if guidance is perceived as less predictable or more contingent on political narratives.
Independence, Constraints, and Market Beliefs
Legally, the Fed’s independence is well established, and a new Chair cannot unilaterally alter the dual mandate or override committee-based decision-making. Interest rate decisions require consensus on the Federal Open Market Committee, limiting the scope for abrupt directional change. These institutional constraints anchor expectations and reduce the probability of extreme outcomes.
However, markets price probabilities, not certainties. If investors perceive a higher risk of political influence over time, even without concrete evidence, that belief can affect currency valuation, inflation expectations, and risk premia. As with regulatory signaling, the market impact stems less from confirmed changes than from how credible the Fed’s long-term commitment appears under new leadership.
Bottom Line for Investors: What Is Highly Likely, What Is Plausible, and What Is Overstated
Taken together, the channels discussed above point to a distinction that matters for investors: the difference between institutional realities, credible shifts at the margin, and narratives that tend to overstate the Chair’s power. A Trump-appointed Federal Reserve Chair could influence priorities and communication, but not rewrite the framework of U.S. monetary policy. Understanding where influence is strongest, and where it is constrained, is essential for interpreting market reactions.
What Is Highly Likely: Continuity Anchored by Institutions
The most likely outcome is broad continuity in the Fed’s core mandate and decision-making process. The dual mandate of price stability and maximum employment is set by Congress, and interest rate decisions are made collectively by the Federal Open Market Committee, not by the Chair acting alone. These structures significantly limit the scope for abrupt or idiosyncratic policy shifts.
As a result, dramatic departures such as abandoning the inflation target, engineering persistently negative real interest rates, or subordinating policy explicitly to fiscal or political goals are highly unlikely. Markets may experience short-term volatility around leadership transitions, but the institutional guardrails remain the dominant force shaping medium-term policy outcomes.
What Is Plausible: Shifts in Emphasis, Communication, and Regulation
More plausibly, a Trump-appointed Chair could influence how the Fed balances risks within its mandate. This could include placing relatively greater weight on growth, labor market strength, or financial conditions when trade-offs arise, even if the formal objectives remain unchanged. Such shifts tend to be incremental rather than revolutionary.
Changes in communication style are also plausible and historically important. Greater tolerance for ambiguity, less reliance on precise forward guidance, or more overt skepticism toward certain academic policy frameworks could raise uncertainty premia across asset classes. In addition, a lighter regulatory stance toward banks and nonbank financial institutions, while largely outside monetary policy, could influence credit growth and financial stability perceptions over time.
What Is Overstated: The Chair’s Ability to Control Markets or Outcomes
What is most often overstated is the notion that a new Chair can directly dictate interest rates, long-term yields, or market direction. Long-term bond yields, equity valuations, and currency levels are shaped by expectations about future inflation, growth, and policy credibility, not by presidential preference or individual rhetoric. Attempts to exert overt pressure on policy would more likely raise risk premia than deliver sustained stimulus.
Similarly, fears of an immediate collapse in Fed independence tend to underestimate legal constraints, internal norms, and reputational incentives within the central bank. While perceptions can shift and should not be dismissed, actual policy outcomes tend to evolve gradually. For investors, the key is not to assume either paralysis or radical change, but to recognize that leadership matters most at the margins, through expectations, credibility, and communication rather than direct control.