Your First 90 Days as a Manager Aren’t About Proving You’re the Smartest Person in the Room
Your first 90 days as a new manager aren't about proving yourself — they're about slowing down, getting curious, and building the foundation that will make you the leader your team actually needs.
Fernanda Brasileiro
2/18/20264 min read
Let me be real with you for a second.
When most people step into a new manager role — whether it’s their first time or their fifth — there’s this quiet pressure to show up and prove yourself. To demonstrate that you were the right hire. To have the answers. To fix things fast. To be impressive.
And that instinct? It’s completely understandable. But it’s also one of the biggest traps new managers fall into.
Here’s the truth: your first 90 days aren’t about being the smartest person in the room. They’re about becoming the most curious one.
What New Managers Think They Should Do (vs. What They Actually Need to Do)
Most new managers walk in thinking their job is to do — to produce, to decide, to deliver results. That’s what made them successful as individual contributors, after all. Why would that change?
But here’s the shift that changes everything: management isn’t about doing. It’s about enabling.
Your job is no longer to be the best at the work — it’s to create the conditions for your team to do their best work. That requires a completely different orientation in those critical first months.
One warning I always give: don’t let the operational work swallow your onboarding whole. I know there’s a certain heroism that gets attached to being “thrown in the deep end” or “drinking from a fire hose.” But surviving the chaos doesn’t make you a great manager — it just makes you a busy one. And a busy manager who hasn’t done the foundational work is a manager who leads a team that keeps struggling with the same problems.
Think of it this way: if you board a ship and the ship is broken, your job isn’t to sail it harder. Your job is to figure out why it’s broken — and fix it.
The Framework: 3 Questions to Ask in Your First 30, 60, and 90 Days
Think of your first 90 days in three distinct phases, each anchored by a guiding question.
Days 1–30: “Who are the people I’m here to serve?”
This is your listening and learning phase. Your entire focus should be on relationship-building — and I mean that intentionally and strategically.
Set up one-on-ones with every single member of your team. These aren’t status updates. They’re introductions. You want to understand:
Who they are as people — their interests, their life outside of work, what makes them tick
How they’re motivated and what kind of support they need from a manager
Where they are in their career and what their goals look like
What’s working on the team — and what isn’t
Don’t stop there. Also set up one-on-ones with your peers and the internal customers your team serves. You’ll be amazed how freely people share their honest perspective on your team when they see you’re genuinely listening. This is some of the most valuable feedback you’ll ever get — and it’s available to you right now, in those first weeks.
And yes — schedule dedicated time with your new boss. Not just check-ins, but real conversations about their leadership style, their expectations of you, and how they like to communicate. If they don’t hand you a clear set of expectations, it’s on you to ask the questions that draw them out. You can’t lead your team in the right direction if you’re not clear on where “right” is.
Research backs this up: a Gallup study found that employees who have regular, meaningful one-on-one meetings with their managers are significantly more engaged — and managers who invest in those early relationships set a stronger foundation for team performance (Gallup, “State of the American Manager,” 2015).
At the end of Day 30, have a check-in with your manager. Share what you’ve learned, your initial observations, and your goals for the next phase. This is how you build trust early.
Days 31–60: “What does this team need to succeed?”
Now that you’ve done your listening, it’s time to look at the bigger picture. This is where a SWOT analysis becomes a powerful tool — not just as a corporate exercise, but as a genuine diagnostic.
Map out your team’s strengths, weaknesses, opportunities, and threats. What are they really good at? Where are the gaps? What does the company strategy require of them — and are they set up to deliver?
Also take time to understand the company’s objectives, your department’s goals, and how your team’s work connects to both. You can’t align your team to a strategy you don’t fully understand yet.
This phase is also about starting to identify the changes — to systems, processes, roles, or team dynamics — that might be needed. You don’t need to have all the answers yet. But you should be forming the right questions.
Michael D. Watkins, in his landmark book The First 90 Days, describes this phase as moving from “orienting” to “diagnosing” — and it’s one of the most important pivots a new leader can make.
Days 61–90: “How do I show up as the leader this team deserves?”
By the end of your 90 days, the goal is integration. You’re no longer figuring out the basics — you’re building your rhythms. Your weekly team meetings, your regular one-on-ones, your check-ins with your manager — these should feel like a natural part of how you operate.
This is also when you start contributing more visibly: speaking up in cross-functional meetings, representing your team’s perspective, and beginning to take meaningful action on performance — whether that’s recognizing wins, coaching through challenges, or addressing gaps.
The function of a manager is to support their team — and if the team has issues, the manager’s job is to figure out what’s driving them and make changes that actually fix the root cause. That’s leadership. That’s the work.
The Bottom Line
Your first 90 days as a manager are not a performance. They’re a foundation.
The managers who set themselves up for long-term success aren’t the ones who come in with all the answers. They’re the ones who come in with genuine curiosity, a real desire to understand their people, and the discipline to resist the pull of just staying busy.
Slow down to speed up. Listen before you lead. Build the trust before you ask for it. That’s what makes a great manager in the long run.
I teach this in my New Manager Foundations Workshop. What would you add to this list?
Sources & Further Reading
Watkins, M. D. (2013). The First 90 Days: Proven Strategies for Getting Up to Speed Faster and Smarter. Harvard Business Review Press.
Gallup. (2015). State of the American Manager: Analytics and Advice for Leaders. Gallup Press.
Harter, J., & Adkins, A. (2015). What Great Managers Do to Engage Employees. Harvard Business Review.
Drucker, P. F. (1967). The Effective Executive. Harper & Row.
Fernanda Brasileiro
Leadership Development Workshops, Consulting & Coaching
CONNECT
+1-224-456-8984
© 2026. All rights reserved.
SUBSCRIBE
