Favor had they done this prep before their senior year and played that way to demonstrate that this thing has legs and they aren't going to act normal after senior day
Some people say it is because they have more time like in this post
http://www.cougarboard.com/board/message.html?id=17540736
If you look at the things he says, all of them are offered at BYU. In his list of things everything there is about discipline. The discipline to eat right, the discipline to work out, the discipline to do the right things and not hang out with your buddies eating pizza.
If a player would take it seriously and do this for one or two years of college these programs would become a polishing instead of a transformation.
Once the NFL scouts see that your players are polishing themselves in these programs rather than transforming themselves in these programs you will see draft stock rise.
I'm not saying these programs are important and that they don't serve a purpose but our players have been using them wrong as evidence by these photos.