Don't just hand an integration plan to functional leaders post-close. Involve them early in the process as co-architects. Their input is crucial for validating financial models and strategic assumptions, ensuring realistic expectations and fostering ownership of the deal's success.

The most critical lesson from integrating 22 acquisitions wasn't about perfecting data migration. Instead, success was determined by spending significant time with acquired teams *before* migrating core systems. This human-centric approach ensures teams feel supported and bought into the new direction, which is more impactful than technical flawlessness.

While high-velocity M&A requires dedicated staff, a low-volume approach relies more heavily on a single, seasoned integration leader. This leader must mentor and coach functional team members who are new to the M&A process, making their expertise vital for success.

Many M&A teams focus solely on closing the deal, a critical execution task. The best acquirers succeed by designing a parallel process where integration planning and value creation strategies are developed simultaneously with due diligence, ensuring post-close success.

Palo Alto Networks' M&A playbook defies convention. Instead of integrating an acquisition under existing managers, they often replace their own internal team with the acquired leaders. The logic is that the acquired team won in the market with fewer resources, making them better equipped to lead that strategy forward.

During a merger, prioritize people over process. Technical integration is secondary to building trust between teams. Use simple, cultural activities like joint happy hours and "show-and-tells" about the tech stack to humanize the engineering effort and foster empathetic collaboration early on.

A true integration leader must deeply understand the acquirer's operations, connect strategic deal value to tactical decisions, and act as a translator between siloed workstreams. This requires intense curiosity and hands-on involvement beyond the scope of traditional project management.

For iCapital, an acquisition is not complete until both the technology and the people are fully integrated into a "one-eye capital" culture. The CEO emphasizes that people integration is even more critical than tech integration, as a failure on the cultural front means the entire acquisition fails.

The key to post-acquisition integration isn't a perfect plan, but spending significant time on the ground with the acquired team. Leaders must earn the right to lead by demonstrating consistency and empathy over weeks and months, as initial promises are met with skepticism. A single presentation won't win anyone over.