Here's my best shot at it. FWIW, I've included weekly consistancy into the mix.
1 Joseph Addai, IND RB#8 - low mileage and easiest RB job in NFL
2 Steven Jackson, STL RB#2 - lots of carries last season, but stable situation and no injury history
3 LaDainian Tomlinson, SD RB#1 - only concern is mileage, coaching change will be a push at worst
4 Willie Parker, PIT RB#6 - only concern is coaching change, verly slight durability concerns
5 Travis Henry, DEN RB#9 - has some injury history, but is in a great situation
6 Willis McGahee, BAL RB#15 - injury history, but on a better team and is the clear cut #1
7 Brian Westbrook, PHI RB#5 - only concern is injury history…but it is a big concern
8 Reggie Bush, NO RB#11 - splitting time with Deuce & ankle last year
9 Rudi Johnson, CIN RB#10 - too many miles and a good young back behind him
10 Clinton Portis, WAS RB#13 - injury is only real issue, Betts hurts a little, though.
11 Frank Gore, SF RB#4 - how long can he run that hard on a rebuilt body?
12 Shaun Alexander, SEA RB#7 - old and coming off a major injury is a bad combo
13 Laurence Maroney, NE RB#12 - shoulder is a major concern and Pats players are inconsistant week to week
14 Larry Johnson, KC RB#3 - holdout starting to be a major issue in addition to O-line & QB
15 Maurice Jones-Drew, JAX RB#14 - gets the least touches out of the top 15 and team's passing game is bad