Not necessarily. Big hits can wear down a defense and having to tackle a bigger back. If the back can get the best of the matchup you'll start to get gains late in the ballgame. I love having 2 backs to carry our running game. We always need an option in case of an injury, and I think this system might revive Greene's game and motivate CJ to return to his former self. He's showing signs but not there completely. Maybe help this year and an improved line will make us a top rushing team again.