When Corp Dev runs diligence and hands it off to integration, it creates information gaps. Having the integration leader run diligence provides irreplaceable firsthand context, preventing misinterpretations and avoiding the need to 're-diligence' the deal later.

Involve the integration lead early in the deal process to act as a 'red team.' Their role is to challenge the business case and probe the plan with practical, ground-level questions, preventing strategic 'echo chambers' and ensuring the deal is executable.

M&A diligence occurs in two phases. The first phase, post-IOI, validates the strategic thesis and value drivers. The second, confirmatory phase post-LOI, stress-tests the integration plan's feasibility. This requires appointing an integration leader early to ensure the plan is realistic and owned before the deal is final.

Instead of a separate team handing off findings, Cisco's integration lead orchestrates the entire diligence process. This ensures that diligence is not just a risk-finding exercise but is actively focused on validating the executability of the initial integration strategy and deal thesis.

Cisco's model brings the integration lead in from the earliest phases to shape diligence strategy. This ensures the "how" of integration is validated early, preventing post-close surprises and accelerating value capture, a stark contrast to the traditional model where integration is a late-stage handover.

To avoid a broken handoff, embed key business and integration experts into the core deal team from the start. These members view diligence through an integration lens, validating synergy assumptions and timelines in real-time. This prevents post-signing surprises and ensures the deal model is operationally achievable, creating a seamless transition from deal-making to execution.

By the time a strategic acquirer enters due diligence, the desire to do the deal is already high. The process's primary purpose is not to hunt for deal-breakers but to confirm key assumptions and, more importantly, to gather the necessary data to build a robust and successful integration plan.

To avoid post-close surprises and knowledge loss, marry diligence and integration leads before an LOI is even signed. This ensures real-world operational experience informs diligence from the start. The goal is to have a drafted integration thesis by LOI and a near-complete plan by signing, not after closing.

If a deal team says, "don't bring the integration people in because they'll mess up the deal," it is a massive red flag. This indicates they are likely sugarcoating problems and painting an overly optimistic picture for the seller, virtually guaranteeing post-close surprises and failure.