"This is not a comfortable profession," he says. "I don't wake up at 4:30 in the morning and stay up until 11 o'clock at night to be comfortable. We do this to win. And winning is not a comfortable process. … Everybody likes to lay on the couch and watch TV. I can do that with the best of them. But if you put guys in those more difficult situations on the field and it's a little hotter than you want it to be and practice is a little tougher and things aren't going your way, I think that instills a tough-mindedness."