Discipline in football occurs on the field, not off it. Discipline is knowing what you're supposed to do and doing it as best you can.
Knowing his coach likes him is more important to a player than anything else.
Discipline is knowing what you're supposed to do and doing it as best you can... On third down and short yardage, the Raiders don't jump offside. That's discipline - not a coat and tie, not a clean shave.
You're not going to eliminate concussions. Anytime you hit your head, you have a chance of getting a concussion, in any sport, too. I think we have to learn more about it. Part of it is rules, part of it is equipment, part of it is medical studies, knowing more about the brain.
It's been the video game ever since I got out of coaching. Even when I was an announcer, fewer and fewer people remembered me as 'Coach,' and as the years went on, people just started knowing me from the game.