Why the First 90 Days Matter
Michael Watkins, a professor at IMD Business School and former Harvard Business School faculty member, published The First 90 Days in 2003 after extensive research on leadership transitions. His central finding: the actions leaders take during their first three months in a new role have a disproportionate impact on their long-term success or failure. Impressions form quickly. Momentum -- positive or negative -- builds fast. And the habits and relationships established early tend to persist.
Watkins estimated that a failed leadership transition costs an organization up to 2.7 times the leader's annual salary when you account for lost productivity, team disruption, and the cost of finding a replacement. Yet most organizations provide little structured support for leaders in transition. The framework exists to fill that gap: a systematic approach to the 10 challenges every new leader faces, regardless of industry or level.
Watkins' 10 Key Transition Challenges
1. Prepare Yourself
The transition begins before your first day. Watkins argues that the biggest danger is carrying over assumptions and playbooks from your previous role. What made you successful in your last position may not work in this one. Preparation means mentally letting go of the old role, researching the new organization's history and culture, and identifying what you need to learn quickly. It also means recognizing that you are vulnerable: new leaders face a steep learning curve during which they are making decisions with incomplete information.
2. Accelerate Your Learning
Learn as fast as possible about the organization's strategy, structure, culture, politics, and the specific challenges facing your area of responsibility. Watkins recommends a structured learning plan with specific questions for different stakeholders. Talk to your direct reports individually. Talk to peers. Talk to customers. Read the last two years of board materials. Identify who the real influencers are (they are not always the people with the highest titles). The investment in learning during weeks one through four pays dividends for years.
3. Match Strategy to Situation
Not all leadership situations are the same. Watkins identifies four common scenarios: startup (building something new), turnaround (fixing something broken), accelerated growth (scaling something that is working), and realignment (revitalizing a successful organization that is drifting). Each requires a different approach. A turnaround demands urgent, visible action. A realignment requires subtlety because people may not recognize that change is needed. Misdiagnosing your situation -- treating a realignment like a turnaround, for example -- is one of the most common transition mistakes.
4. Negotiate Success
Build a productive relationship with your boss by aligning on expectations, resources, and measures of success. Watkins calls this the most important relationship to get right in the first 90 days. Have explicit conversations about what success looks like at 30, 60, and 90 days. Agree on how you will communicate, how often, and on what topics. Clarify which decisions you can make independently and which require consultation. Do not assume alignment -- confirm it in writing.
5. Secure Early Wins
Early wins build credibility and momentum. Watkins recommends identifying opportunities that are visible, achievable within weeks, aligned with your boss's priorities, and meaningful to the people around you. Good early wins demonstrate that you understand the situation, that you can deliver results, and that your presence is making a positive difference. They should not require major organizational change or create enemies. The goal is to build trust while you are still learning.
6. Achieve Alignment
Assess whether your organization's strategy, structure, processes, and talent are aligned with each other and with the mission. Misalignment is the most common source of underperformance. A brilliant strategy executed through the wrong organizational structure will fail. Talented people working in broken processes will underperform. During the first 90 days, your job is to diagnose where the misalignments are -- not necessarily to fix them all immediately, but to develop a clear picture of what needs to change and in what order.
7. Build Your Team
Evaluate the team you have inherited. Watkins recommends assessing each person against the criteria the role demands now, not what it demanded previously. Some people will be strong performers who need support. Some will need development. Some may need to be replaced. Make these assessments carefully but do not delay them indefinitely. Watkins warns that new leaders typically wait too long to make personnel changes -- and the delay erodes team performance and your own credibility.
8. Create Coalitions
Identify the people whose support you need to succeed and build relationships with them deliberately. Map the political terrain: who has influence, who controls resources, who has been burned by previous leadership changes. Build alliances based on shared interests, not just personal rapport. Watkins emphasizes that political awareness is not the same as political manipulation -- it is the practical recognition that getting things done in organizations requires the support of people you do not directly control.
9. Keep Your Balance
Leadership transitions are personally demanding. The combination of high stakes, a steep learning curve, and the pressure to prove yourself can lead to poor decisions, damaged relationships, and burnout. Watkins recommends maintaining personal disciplines: exercise, sleep, time with people who keep you grounded, and a trusted advisor or coach outside the organization who can provide perspective. Leaders who burn out in the first 90 days often make their worst decisions during exactly the period when decisions matter most.
10. Accelerate Everyone
Once you have established your own transition plan, help the people around you transition to the new reality as well. Your direct reports are also in transition -- they have a new boss, new expectations, and possibly a new direction. The faster you can help them understand what you expect, what your priorities are, and how you work, the faster the entire organization can move forward together.
When to Use This Framework
- When starting a new job at any level. Whether you are a first-time manager or a new CEO, Watkins' 10 challenges apply. The emphasis shifts, but the structure holds.
- When being promoted within your current organization. Internal promotions are transitions too, and they carry unique risks -- people who knew you as a peer now report to you, and assumptions from your previous role can blind you to what the new role requires.
- When taking over a team or department. Even without changing companies, inheriting a new team means building new relationships, diagnosing a new situation, and establishing credibility with a new set of stakeholders.
- When onboarding as a board member or advisor. The learning acceleration and coalition-building elements of the framework apply to any role where you need to understand a complex organization quickly.
Common Mistakes
Importing your old playbook wholesale. The solution that worked at your last company may not work here. Different organizations have different cultures, constraints, and histories. New leaders who arrive with a predetermined plan and implement it without adapting to the specific context frequently fail, even if they were highly successful in their previous role. Listen first. Diagnose the actual situation. Then design a response that fits.
Trying to change too much too fast. The impulse to prove your value quickly can lead to premature action that disrupts relationships you have not yet built and processes you do not yet understand. Watkins explicitly warns against "the action imperative" -- the pressure (internal and external) to make visible changes before you have learned enough to make good ones. Early wins should be small, achievable, and relationship-preserving.
Neglecting the boss relationship. Some new leaders focus entirely downward (on their team) and laterally (on peers and stakeholders) while assuming the relationship with their boss will take care of itself. It will not. Misaligned expectations with your boss are the single most common cause of leadership transition failure. Schedule the conversation. Be explicit about success criteria. Follow up in writing.
Putting It Into Practice
If you are entering a new role, create a 90-day plan organized around Watkins' 10 challenges. For each challenge, write one to three specific actions you will take in the first 30 days. Review and adjust the plan at day 30 and day 60. Share the plan with your boss to create alignment and accountability.
If you are not currently in transition, use the framework to audit your current position. Even leaders who have been in their role for years can benefit from asking: Is my strategy matched to my situation? Is my team aligned? Have I built the coalitions I need? Am I maintaining my own balance?
For leaders who want structured coaching during a transition, Cabinet offers sessions specifically designed for the first 90 days, helping you accelerate learning, identify early wins, and build the relationships that determine long-term success in your new role.