Collins does not, however, explain why internal candidates sometimes fail as well. I will attempt to do so here. I will focus the discussion on two core skills for running an organization: First, knowing what to do. Second, getting the company to do what you know. While being a great CEO requires both skills, most CEOs tend to be more comfortable with one or the other. I call managers who are happier setting the direction of the company Ones and those who more enjoy making the company perform at the highest level Twos.
