"A lot of companies have the “no assholes” rule. So if the greatest programmer ever is also a jerk, he’s fired. Our rule is “no neutrals.” So when the new guy walks down the hall, is my team drawn to him? Or do they divert their glance? If they divert their glance, we fire that person. I call it the hallway test, but it’s more of a conceptual thing. The idea is when you put superstars together, you can ask, “What did you do today that excited the people around you and made them better at their jobs?” If you can’t give examples, I don’t want you here."
— The Way I Work: Paul English of Kayak