I understand there is a need to try to prevent brain injuries in football and that is what the NFL is addressing. The problem is, in order to do that you have to change the nature of the game.
It is a debate worth having, whether to try to protect players and insure that their life after their career is as healthy and happy as possible, or say that it is more important to keep football the way it is and accept brain damage as just another part of the game.