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An acquisition can put you ahead of the game in a new market, expand your offerings and grow your client base overnight. It allows you to shortcut years of R&D or instantly build new infrastructure and talent. It can set your business up for the next decade — and it also creates a level of complexity and pressure that can raise even seasoned entrepreneurs’ blood pressure. I once led the integration of five companies simultaneously.
Five different cultures. Five ways of working. Five versions of what “good” looked like. These strategic acquisitions needed to land smoothly, but every day required decisions that could not be delayed. What integrates now? What stays separate? Who decides? What stops? That experience taught me something most leaders learn the hard way: mergers fail not in strategy, but in the decisions and cultural collisions that follow. And they fail often — roughly 70% of the time. In the first 100 days, leaders define the combined company’s operating model. What gets decided early becomes the system everyone follows. What gets ignored becomes friction that compounds over time. You shape the future one decision at a time, anchored in strategy.
Here are the seven decisions that matter most.
1. Define the non-negotiable strategy of the combined company
Before org charts, systems or integration plans, define the strategy. Help the new organization understand what it is now part of — and where it is going. Who are we now? What are we building? What will we stop doing? Without this clarity, organizations drift back into legacy behavior. Each side continues operating as before, and the merger becomes a loose collection of teams rather than a unified company.
Strategy must lead. It provides the framework for every downstream decision.
2. Explicitly define the culture and behaviors that will guide execution
Culture shows up in behavior, not statements. After a merger, cultures can drift quickly or clash outright. Without deliberate alignment, people default to legacy norms, teams protect old ways of working, and accountability becomes inconsistent.
Leaders must define how teams collaborate, how decisions are challenged and what accountability looks like in practice. Culture and strategy are tightly linked — one determines how the other is executed.
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