To accelerate AI adoption, Block intentionally dismantled its siloed General Manager (GM) structure, which had given autonomy to units like Cash App. They centralized into a functional organization to drive engineering excellence, unify policies, and create a strong foundation for a company-wide AI transformation.

Decentralized acquirer Amitech maintains a central team of "black belts," who are experts in operational excellence. These specialists are deployed to subsidiaries to run "Kaizen events," helping them eliminate waste and improve processes. This model combines the autonomy of decentralization with the benefits of centralized expertise.

Large corporations can avoid stagnation by intentionally preserving the "scrappy" entrepreneurial spirit of their early days. This means empowering local teams and market leaders to operate with an owner's mindset, which fosters accountability and keeps the entire organization agile and innovative.

Instead of starting from a textbook, WCM developed its effective culture by identifying the negative traits of its original founder's regime—control, opacity, and stinginess—and deliberately doing the opposite. This 'inversion' method provides a powerful, practical template for cultural transformation.

A one-size-fits-all approach stifles innovation in global companies. To build trust and adapt effectively, leaders must empower local teams with decision-making authority. This respects crucial market-specific cultural nuances and consumer behaviors.

Contrary to the popular bottoms-up startup ethos, a top-down approach is crucial for speed in a large organization. It prevents fragmentation that arises from hundreds of teams pursuing separate initiatives, aligning everyone towards unified missions for faster, more coherent progress.

Home Depot's decentralized model gives regional presidents significant autonomy but with clear, unspoken boundaries—the "invisible fence." This fosters local ownership and agility while ensuring alignment with core company principles. Crossing the line results in a "zap," maintaining strategic cohesion without micromanagement.

Block restructured from divisional GMs to a functional organization (Engineering, Product, Design) across all brands. This creates a single shared roadmap and forces alignment, enabling cross-unit collaboration that was difficult when incentives were siloed in separate P&Ls.

Initially, 6AM City hired two editors per market. Over time, they discovered a more efficient model: empowering a single, autonomous local editor and centralizing all other operations (marketing, sales support, design). This streamlined the process, reduced overhead, and allowed the local editor to focus purely on creating a high-quality, localized product.