A decade ago, a newly appointed CEO could reasonably expect the better part of a decade to set strategy and see it through. That assumption no longer holds. Average tenure at the top has compressed sharply, and the reasons are structural: activist investors with shorter patience, boards under pressure to act quickly, and a business environment that punishes hesitation.

For the leaders who sit in these roles—and the boards who appoint them—the implication is uncomfortable but clear. Succession can no longer be treated as a once-a-decade event. It has become a continuous discipline.

Why Tenure Is Compressing

The shortening of executive tenure is not a sign that leaders are less capable. It reflects a market that has changed the terms of the job itself. Several forces are at work:

• Faster value-creation cycles, where boards expect visible impact within the first eighteen months

• Heightened investor scrutiny, with capital that moves quickly when confidence erodes

• More demanding stakeholder expectations across regulation, talent, and reputation

• A widening gap between the skills that earn a promotion and those the role now requires

What This Means for the Board

A shorter runway changes how a board should think about leadership. When a CEO may be in seat for four or five years rather than ten, the cost of a poor appointment rises and the time available to correct it falls. The board's task is no longer simply to choose a leader, but to maintain a living view of who could lead next.

In practice, the most prepared boards we work with treat succession as an ongoing process rather than a contingency plan locked in a drawer. They benchmark internal candidates against the external market continuously. They invest in the development of their strongest leaders well before a transition is on the horizon. And they keep an honest, current assessment of the gap between today's bench and tomorrow's requirements.

How Boards Build Readiness

Preparation is not a single document or an annual review. It is a set of habits that keep the board honest about where leadership stands today and where it needs to be tomorrow. The boards that handle transitions most smoothly tend to share a few practices:

• Maintain a short list of internal successors at all times, not just when a departure looms

• Give high-potential leaders real exposure to the board, so assessment is based on evidence rather than reputation

• Map the external market regularly, so the bench is benchmarked against what is actually available

• Define the next role, not the last one, since the skills that built the company are rarely the skills that scale it

The Cost of Being Unprepared

When a transition arrives without preparation, the organization pays for it twice—first in the scramble to fill the role, and again in the strategic drift that follows. An interim leader holds the line but rarely sets a new direction. A rushed external hire carries integration risk. And the market notices when a board appears caught off guard.

The boards that navigate leadership change well are rarely lucky. They are prepared. In an era of shrinking tenure, that preparation is no longer optional—it is the work.