If you are going to eat shit, don't nibble. - Ben Horowitz

Peacetime CEO has rules like “We’re going to exit all businesses where we’re not number one or two.” Wartime CEO often has no businesses that are number one or two and therefore does not have the luxury of following that rule.

This is not checkers; this is motherfuckin’ chess. Technology businesses tend to be extremely complex. The underlying technology moves, the competition moves, the market moves, the people move. As a result, like playing three-dimensional chess on Star Trek, there is always a move. You think you have no moves?

Andy Grove points out in his management classic High Output Management,