[sportscurmudgeon]

I doubt that Clinton Portis would "share the RB job" with anyone. And when Clinton Portis is unhappy, he has a tendency to let the world know about it...

Betts was definitely underutilized this year. However, recall the spitting contest that erupted when Zorn tried to use him instead of Portis...

Rock is a special teams player. He might give you a big game at RB once every other season but he has had shots there in the past and is mediocre.

I think the evaluation of Sellers is a bit over the top in praise. As a blocking back, he's fine. As a guy to get you important yards on short yardage situations - - remember his two great shots at the goal line from the one-yardline this year. Could not average 18 inches per carry there - - and it cost the team a game and a playoff shot...