BB does not think this is a good idea:
http://www.boston.com/sports/footba...2007/03/25/getting_in_the_coachs_head/?page=2
On increasing the game-day roster from 45 players to 47: "I don't think changing would be good for the game, I think there is too much specialization as it is. With this, you might have guys like kickoff guys, long field goal guys, short field goal guys, long punters, short punters, some kind of specialty receiver. I think you'd lose the flow of the game.
"I also think fans want to see the same guys out there instead of situational guys -- a guy for this, a guy for that, or like 20 different relief pitchers, one for every inning, one for every batter. It's hard to keep track of all that.
"I came into the league back in the dark ages when you had 38 guys, and that was plenty. Now it's 45 and it's not enough.Continued...
I think [this change] would increase the number of players on injured reserve. There are times you go into a game and if you have six, seven guys that are hurt, you still feel like you have 45-46 to play. But if you feel like the opponent has 47, you're probably going to put a guy on IR and try to get a healthier guy as you get closer to that 53 number."