Rettig has little chance of success with Rutgers behing as they are and Michigan keying on RU's passing game.
Flood has made sure Rettig will have a hard time looking like he's better than Laviano the way Flood uses him.
Flood waits until we are down by 30+ and there are less than ten minutes left in the game and the team appears to have either quit or is dead tired before putting Rettig in.
Just once this season is like to see what he could do if the games outcome was still in doubt.