I really hope that they put an emphasis on diet and exercise.
The players should all have healthy meals cooked for them. I get the impression that a lot of players eat out at restaurants all the time (or get takeout/delivery). They really need to be on special athlete diets and they also shouldn't have to waste their time cooking.
I don't know much about this stuff, but they all need to be taking supplements, protein powders, etc. A while ago I started drinking green smoothies using my blender and they really give you a lot of energy and make you much healthier.
We should also be looking at those smelling salt things they use. Does that really help? Are there better alternatives?
In the pre-game stuff, I see players drinking cans of pop and stuff like that. Maybe Gatorade and some of that stuff is good... but I get the impression that each player basically does his own thing when it comes to overall diet.