A one-size-fits-all integration process can destroy the agility of smaller acquisitions. Rockwell Automation developed separate playbooks for small, medium, and large targets. This tiered approach allows the acquirer to apply necessary safeguards while preserving the target's operational speed, preventing process friction.

Serial acquirer Lifco improves post-acquisition performance by having sellers retain an ownership stake in their business. This goes beyond typical earn-outs, keeping the founder's expertise and incentives aligned with the parent company for long-term growth, rather than just hitting short-term targets.

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.

When owned by multiple private equity firms with varying exit horizons, IFS mitigates conflicting priorities by ensuring acquisition targets, even strategic ones, have a robust business plan to achieve profitability within 18 months to two years.

To reignite growth, Supercell created two distinct operating models. Teams managing existing hit games adopted a 'scale-up' playbook, focusing on iteration with larger teams. Teams developing new titles operated like independent 'startups,' focused on high-risk innovation with small, agile teams.

To retain the culture of an acquired Silicon Valley startup, IFS made practical exceptions to corporate policy. Allowing the team to keep their MacBooks and use specialized development tools, while seemingly minor, was crucial for preserving their preferred, fast-paced way of working.

During the uncertain regulatory review of its Adobe acquisition, Figma's leadership kept its "foot on the gas." Because an acquirer cannot direct a company's activities pre-close, Figma continued executing its independent roadmap, ensuring it remained strong whether the deal succeeded or failed.

IFS uses a framework of four deal archetypes—Product Bolt-on, Customer Migration, Market Entry, and New Strategic Platform—to clarify the investment rationale and pre-determine the integration strategy for every acquisition, ensuring strategic alignment from the start.

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.