enjoy college and dont worry about changing the world, if they work hard the chips will fall as they may, dont take it upon yourself to try and help them get to the NFL thats there job
but if they ask dont be shy about sharing your advice and knowledge.
we football players tend to be a strange breed. I go to a d3 school and we have a great team, and the strangest thing is that our best players drink the most, but on top of that the best ones always work the hardest in the running and lifitng its weird as hell...
but like i said dont be concerned with changing the world cause its naive to think you can change people.