Momentum and growth are the lifeblood of startups. This is probably in the top three secrets of executing well.
Most founders have not managed people before, and they certainly haven't managed managers.
Unpopular but right is what you're going for.
It really is true that you become an average of the people you spend the most time with.
You want to sound crazy, but you want to actually be right.
You have to be decisive. Indecisiveness is a startup killer.