Generally the reason they fail in the job is, you made some mistake in the hiring process in that you didn't match... them to the needs of your company accurately enough. That's the #1 reason this fails. And that's generally a good place to start: Here's where we are and here's what I didn't recognize about us and about you when I made the decision, and now it is what it is.
Ben HorowitzThe most important thing you can learn as CEO- one of the hardest things to do is, you have to discipline yourself to see your company... through the eyes of the people that you're working through. Through the eyes of the employees, through the eyes of your partners... through the eyes of the people who you're not talking to and who are not in the room.
Ben Horowitz