a bunch of high-IQ people with the wrong kind of ambition won’t work. - Ben Horowitz

the reason that you have to fire your head of marketing is not because he sucks; it’s because you suck. In other words, the wrong way to view an executive firing is as an executive failure; the correct way to view an executive firing is as an interview/integration process system failure. Therefore, the first step to properly firing an executive is figuring out why you hired the wrong person for your company.

Specifically, the following things that cause no trouble when you are small become big challenges as you grow: Communication Common knowledge Decision making

When you run a large organization, you tend to become very good at tasks such as complex decision-making, prioritization, organizational design, process improvement, and organizational communication. When you are building an organization, there is no organization to design, there are no processes to improve, and communicating with the organization is simple. On the other hand, you have to be very adept at running a high-quality hiring process, have terrific domain expertise (you are personally responsible for quality control), know how to create process from scratch, and be extremely creative about initiating new directions and tasks.