Excellent advice. Read the whole thing!
“Know yourself” includes knowing when you excel as a principal and when you excel as a lieutenant. Many entrepreneurs I know think of themselves as CEO material. Generic ambition points to the top. But not everyone is best suited for the top job all the time, even if they are sufficiently capable.
You are not either a principal or lieutenant. Teams and circumstances vary. Part of being a good team player is knowing your role within the team. Most of the time I find myself a principal / CEO, but there is at least one area where I excel and enjoy more a lieutenant role: basketball.
via Ben Casnocha: The Blog: Know Yourself: Principal or Lieutenant?.