I have never said they needed the extra motivation, i only asserted that it will be seen as disrespect and used as extra motivation.
I will give you an example and its apples to oranges, but it fits here. When I played High school ball in Alabama, i played for a small (at the time) 1A type school, very small school and the team played kids both ways most of the game. We had a team we were playing that was a not even a rival that had a RB that was a beast. He looked like a man among boys and was hitting teams for almost 200 a game. Not one team had slowed him down and they had played some good teams that year already. It was in their local paper that he was on record as saying he would run wild on our team and expected the game to be a blowout.
Our coach posted this article on the bulletin board in our gym, our locker rooms for practice, our field house at the stadium and on the boards around the halls at school. On friday night we were as pumped as i can ever remember our team being. We held this kid to his season low of 72 yards on 27 carries and he didnt score all night. We lost two players in the game, one for the year with a torn shoulder muscle, but we won the game(that propelled us to a state playoff spot) and all on the strength of a few words of disrespect by an opposing player. so yes, words can be a motivating factor and used as extra motivation if done correctly Saban knows how to use this tool well. Notice LSU's fronts are all quiet this week, wonder why?