"They go through with this it's just going to change the game -- I don't know if it'll be watchable."
Koch says there's no way to prevent head injuries in pro football.
"They're gonna see the fans are gonna dislike these rule changes so much; simply what they'll do is when players come out you'll still get the same contracts but you'll sign some waiver (absolving the league from responsibility for head injuries)."
Legendary Cowboys' running back Emmitt Smith says the NFL has lost its mind if it approves such a rule.
