What is The First 90 Days about?

The First 90 Days is Michael Watkins's guide to leadership transitions — the critical period when a new leader either establishes the credibility, relationships, and early wins that set them up for long-term success, or falls into traps that undermine them for months or years. The book is based on research into why some leaders succeed and others fail in new roles, and is organized as a set of principles and practices for navigating the transition strategically rather than reactively.

Watkins argues that the vulnerabilities that sink new leaders are predictable. They come in too fast, making decisions before understanding the situation. They bring strategies that worked in previous roles without testing whether those strategies fit the new context. They build relationships narrowly, focusing on their direct team while neglecting lateral relationships. They fail to diagnose the type of situation they've inherited — whether it's a startup, a turnaround, an accelerated growth context, or a sustaining success — and apply the same approach regardless.

The book's most useful framework is the STARS model, which identifies five types of business situations: Startup (building from scratch), Turnaround (rescue), Accelerated growth (managing rapid expansion), Realignment (changing direction before crisis), and Sustaining success (maintaining high performance). Each requires a fundamentally different leadership approach, and the failure to diagnose which situation you're in is one of the most common transition errors.

The second half addresses the organizational politics of transition: how to understand who has influence, how to negotiate with your new boss about what success looks like, how to identify the organizational landmines left by your predecessor, and how to build a team that will actually execute rather than resist. The book is as much about organizational intelligence as it is about personal effectiveness.