Why a CEO’s first 90 days are rarely about performance

Boards often talk about “early wins” when appointing a new CEO. The intention is understandable. Momentum matters. Stakeholders want reassurance. Teams want direction. But in reality, the first 90 days of a CEO’s tenure are rarely about performance. They are about positioning. 

From our experience supporting CEO appointments across health, life sciences, associations, academia and not-for-profit organisations, the most successful leaders resist the pressure to move too fast. They understand that credibility is built before results are delivered.

The hidden work of the first 90 days

New CEOs who perform well over the long term tend to focus early on three quieter disciplines:

1. Listening before leading

Effective CEOs spend time understanding the organisation’s formal strategy and its informal realities. They listen to staff, peers, funders, regulators and partners. They notice where energy sits, where trust is strong, and where it is fragile.

2. Clarifying expectations with the Board

Misalignment between the CEO and the Board often starts early and quietly. The first 90 days are the window to clarify priorities, success measures, decision rights and communication rhythms. When this alignment is explicit, momentum later comes faster.

3. Understanding culture before changing it

Culture is rarely what is written on the wall. It shows up in how decisions are made, how conflict is handled, and what behaviours are rewarded or tolerated. CEOs who try to “fix” culture too early often create resistance. Those who observe first are far better placed to lead change later.

Early restraint creates long-term confidence

Boards sometimes interpret early restraint as hesitation. In reality, it is often a sign of maturity. CEOs who move too quickly can unintentionally undermine trust, unsettle teams or solve the wrong problems. Those who take time to diagnose before acting tend to build stronger authority, clearer narratives, and more durable impact.

In many of the searches we conduct, Chairs later reflect that their most successful CEOs were not the loudest in the first three months. They were the most curious.

How Boards can support a strong start

Boards play a critical role in shaping a CEO’s early success. Practical steps include:

• Agreeing on clear priorities for the first 90 days
• Avoiding overload of legacy issues and “urgent” fixes
• Supporting structured stakeholder listening
• Creating space for reflection, not just reporting

When Boards set realistic expectations early, they enable CEOs to lead with confidence rather than defensiveness. A strong beginning is rarely visible, but always felt.

The first 90 days are not about proving capability. Capability is assumed by the time a CEO is appointed. They are about building trust, shaping relationships, and laying foundations that allow performance to follow.

At Brooker Consulting, we see time and again that when CEOs are supported to get this phase right, the organisation feels the difference long after the first quarter has passed. 

If you’d like to learn more about how our services support the transition between CEOs, or want to find your next leader, please reach out to me.