Another scenario I was thinking about earlier is where it was mentioned in one of the 24/7 or some other buildup show about how Marquez transformed himself as the smart counter puncher who's happy with a decision, to someone exciting that knocks fighters out and becomes more of a drawcard for fans...
They mentioned that maybe Mayweather might try to reinvent himself in this way.. Mayweather has shown he can trade and had finished fights early, but maybe in the off time he's decided to really take on that attitude mixed with his already great defensive skills... If so then trying to incorporate that type of style in the fight might mean his gameplan isn't as sharp as it has been and marquez can take advantage of that... If mayweather plans on doing ANYTHING different to how he used to may mean the fight is far more interesting and gives marquez another sniff..