Wow. This is one of the worst pieces of advice I've ever heard. Don't hire him in the first place, maybe. But once he's there, if you don't have a replacemen

Wow. This is one of the worst pieces of advice I've ever heard. Don't hire him in the first place, maybe. But once he's there, if you don't have a replacement already lined up and combat-tested, firing him can easily shut down your company.