Well-led projects tend to create new spin-offs rather than overextend their original idea. The former is riskier and more liable to fail, whereas the latter chases diminishing returns and undermines the conceptual integrity of the system.

Microsoft forcing Windows on mobile devices in the 2000s is an easy example of that kind of failed leadership.

This subject matter is covered extensively in: https://en.wikipedia.org/wiki/The_Innovator%27s_Dilemma