brent mcneil cannot remember the score of the super bowl. the league has started to address the issue of brain injuries. there is a settlement pending. is this a sufficient response so far? >> the response will never be sufficient. i hope roger would agree that we should never be satisfied about where we are. has the league taken some steps in the past two years, mostly at the urging of our union, to make changes? yes. we started the fight for neutral sideline concussion experts two years ago. the league resisted it until the end. it seems to me that we ultimately always get there, to use your word, belatedly. we have a team of doctors at work on the side of the union that constantly pushes the envelope to keep players safe. i'm happy to say that process is working. do we need to do better? yes. do we need to arrive at a place where we are satisfied? we should never be satisfied when it comes to the health and safety of players. >> i grew up on football. an essential appeal of the game is violence. people love it when the quarterback is sack