Amphenol runs as a federation of autonomous business units. This structure is key to its M&A success, as acquired companies retain their brand, culture, and customer intimacy. Sellers prefer Amphenol because they know their business won't be suffocated by a monolithic corporate hierarchy.

To ensure Day 1 alignment and retain key talent, treat integration planning as a collaborative process. Share the developing integration plan with the target's leadership during due diligence. This allows them to validate assumptions, provide critical feedback, and feel like partners in building the future company, rather than having a plan imposed on them.

Combining strategy, M&A, and integration under a single leader provides a full lifecycle, enterprise-wide view. This structure breaks down silos and creates a "closed-loop system" where post-deal integration performance and lessons learned directly feed back into future strategy and deal theses, refining success metrics beyond financials.

To combat decision paralysis during integration, implement a regimented playbook with RASI charts (Responsible, Accountable, Consulted, Informed). Critically, decisions are time-bound with clear milestones. If a decision isn't made within the specified timeframe, it is automatically escalated, forcing resolution and maintaining momentum.

A one-size-fits-all onboarding process is ineffective. Customers have varying levels of technical proficiency; a power user may find excessive handholding annoying, while a novice needs it. The process must be flexible and tailored to the individual to avoid creating a frustrating experience.

Instead of large, multi-year software rollouts, organizations should break down business objectives (e.g., shifting revenue to digital) into functional needs. This enables a modular, agile approach where technology solves specific problems for individual teams, delivering benefits in weeks, not years.

To move beyond subjective assessments, Rockwell implements a 0-5 ranking system based on a 50-item survey sent post-LOI. This quantitative approach analyzes cultural tenets like adaptability and mission clarity, graphing the results to identify both gaps and similarities, which then directly informs the integration strategy.

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.

Instead of an immediate post-close review, conduct retrospectives 6-12 months later. The true quality of due diligence and strategic fit can only be assessed after operating the business for a period. This delay provides deeper insights into what was missed or correctly identified, leading to more meaningful process improvements.