Although some of the suggested changes go too far (rumors of Goodell wanting to eliminate kickoffs, for instance), I can't help but be a little concerned for the future of the game if nothing is done at all.
Either detection is improving or the speed of the game is causing more concussions; either way, the long-term effects of head injuries are becoming more known by the general public. I can't help but wonder how much of an effect on the next generation of players. Sure, the kids won't care, but their parents probably will. "Gee, I think I'll sign little Johnny up for soccer instead. It's so much safer, and the boys on the team are just so nice!" Not how I want the future of US sports to be.