For many watching or listening at home, this was a new Belichick. But there are two Belichicks, or at least two perceptions of him. There’s the man who has a seemingly joyless pursuit of football excellence, reinforced by comically bland sound bytes, a grim sideline demeanor, and cold and calculated personnel decisions. But behind that, there’s a real person, one who can be funny, disengaging and sincere. If you’ve earned his respect, he’ll help you in any way he can. That Belichick truly does exist; he just doesn’t let the public see that side very often. Because it doesn’t help him win games.