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The First 90 Days in a New Leadership Role

20 July 20263 min readOliva Coaching & Consulting

The first 90 days in a new leadership role is the period in which a new leader forms their first real understanding of the team and business they've joined, starts building credibility with the people around them, and lays the groundwork for the direction they'll set. It's called out specifically because the stakes are asymmetric: what you do — and don't do — in this window shapes how much trust and latitude you're given for a long time afterwards.

The pressure in a new role is to look decisive quickly. That instinct is understandable and usually wrong. The leaders who do best in a first 90 days tend to resist the urge to act early and instead spend the bulk of that time genuinely learning — then act with more confidence because they understand what they're acting on.

Start by listening, not fixing

It's tempting to arrive with a plan, especially if you were hired partly because of what you'd done elsewhere. But a new role has its own history, its own unwritten rules and its own reasons things are the way they are — reasons that are rarely visible from outside. Spend real time in one-to-one conversations with your team, your peers and your own manager, asking open questions and mostly listening. You're not gathering ammunition to justify decisions you've already made. You're finding out what you don't yet know, which at the start is almost everything that matters.

Separate what's broken from what's just unfamiliar

New leaders often mistake "different from how I'd do it" for "wrong". Some of what looks broken in week two turns out to be a sensible adaptation to a constraint you haven't discovered yet. Before changing something, it's worth asking why it's done this way now, and genuinely listening to the answer — even when the honest answer is "nobody's quite sure, it's just always been this way", which is itself useful information.

Build credibility through small, consistent signals

Trust in a new leader isn't won with one big move. It accumulates from smaller things done reliably: following through on what you said you'd do, being straightforward when you don't know something rather than bluffing, giving credit generously, and treating people's existing expertise with genuine respect rather than performing respect while quietly planning to overrule it. People notice these signals faster than they notice strategy.

Set direction without overcommitting

By the end of the first 90 days, people reasonably expect some sense of where you're taking things — a vague "let's see how it goes" for months on end reads as a lack of conviction. The skill is doing this without locking in decisions your first 90 days of learning hasn't yet earned you the right to make confidently. A workable approach is to be clear about the questions you're focused on and the principles guiding you, while being honest that some specific decisions are still being worked through.

Watch for the traps

A few patterns catch out even experienced leaders in a new role. Over-relying on the playbook that worked in your last job, without checking whether the context actually matches. Trying to prove yourself by moving fast on something highly visible but not actually important. Under-investing in relationships with peers because your attention naturally gravitates to your own team. And avoiding the one or two genuinely difficult conversations — a underperforming direct report, a peer who's quietly undermining you — that become much harder to have the longer they're left.

What this period sets up

A strong first 90 days doesn't guarantee success in the role, but a poor one makes everything after it harder — you end up spending months rebuilding trust or unwinding decisions made before you understood the terrain. Leaders who use this window well tend to move slower at the start and faster afterwards, because the direction they eventually set is built on real understanding rather than an early guess.

If you're heading into a new leadership role and want a thinking partner for how to use this window well, a short conversation is a low-pressure way to start.

Frequently asked questions

What should a new leader prioritise in the first 90 days?

Understanding, not action. The first priority is genuinely learning how the team, the business and the politics actually work — through listening and observation — before making significant changes. Leaders who prioritise visible action too early often solve the wrong problem.

Is it a mistake to make changes in the first 90 days?

Not necessarily, but timing matters. Small, reversible changes that build trust are usually fine early on. Large structural or people changes are better made once you've built enough understanding and credibility to be confident you're solving the real problem, not the visible symptom.

How do new leaders build credibility quickly?

Credibility tends to come less from grand gestures and more from consistent small signals: following through on what you said you'd do, listening properly before responding, and being honest about what you don't yet know. Trust compounds from those repeated over the first few months.

Let's turn insight into action.

Book a free consultation and let's talk about where you want to go.