It is significantly more difficult to step in as a non-founder CEO than to build a business from scratch. The new leader must contend with inherited business inertia, a pre-existing culture shaped by the founder, and constant comparisons, making transformative change much harder.

Nike's first external CEO, Bill Perez, failed despite his credentials because he couldn't adapt to the company's unique, collaborative culture. He was accustomed to strict roles, which clashed with Nike's team-oriented atmosphere. This demonstrates that cultural fit can be more critical than a perfect resume for executive roles.

Instead of a traditional president or COO, Todd Graves hired a Co-CEO to find someone demonstrably better than him at his weakest areas (finance, IT, supply chain). The shared title gives them the authority and pride to own these functions, freeing the founder to focus on his strengths like marketing and culture.

When promoted to CEO internally, your advantage is institutional knowledge, but your disadvantage is a lack of external CEO experience. The key is to be egoless about this gap and proactively construct a leadership team and advisory network with the specific experience you lack.

Even with full board support, a successor CEO may lack the intrinsic 'moral authority' to make drastic 'burn the boats' decisions. This courage is harder to summon without the deep-seated capital a founder naturally possesses, making company-altering transformation more challenging for an outsider.

To avoid repeating the Bob Chapek succession "fiasco," Disney's board deliberately structured the process to retain the runner-up. By creating a new President and Chief Creative Officer role, they ensured the finalist had a strong partner and prevented a disruptive executive exit.

The old model of replacing a founder with a 'professional CEO' is often flawed because it removes irreplaceable product insight. The modern approach is for founders to design their executive team to complement their unique strengths, ensuring they stay engaged for the long journey.

Successor CEOs cannot replicate the founder's all-encompassing "working memory" of the company and its products. Recognizing this is key. The role must shift from knowing everything to building a cohesive team and focusing on the few strategic decisions only the CEO can make.

Companies typically promote CEOs from within. An external hire implies a crisis or a failure of succession planning. Therefore, an incoming external CEO has a mandate for significant change. Playing it safe with incremental adjustments squanders the opportunity and fails to address underlying issues.