The other half is physical. Most agree, however, that the mental part is the key component of successful teams. If you look at a football team, it's not overrated on defense. It needs to be rah-rah because emotion is contagious. If you see something happen, it gets everybody pumped up.
Offense is more like a machine.
You've got to do more on offense, you have to execute and block the right people. Everybody thought he was robotic and cold. Heck, he was thinking. Physicality and emotion have their place, obviously. A smart team, however, performs better, coaches said, and many of them prefer to appeal to players' common sense and intelligence instead of all-out emotion.