OK, IMHO here Willie isn't as overrated as many people think. Let's analyze this here for just quick second.
2005 - Willie is splitting carries with Jerome on their way to the super bowl, still young and learning his craft. 255/1,202 yds. 4 TD's
2006 - He's on a team that totally collapses for the first 8 games of the season and then gets it back together for the 2nd half. Ben is getting killed, has no time to throw the ball, the offensive line is really showing signs of degredation. 337/1,494 yds 13 TD's
2007 - The offensive line is horrific, Ben is getting killed again, injuries to key players, it's a transition time on this team with new coaches and a new offense. 321/1,316 yds 2 TD's.
My point is here that Willie gets the job done on teams that for 2-3 years he's been taking a significant amount of carries for have been underachieving and falling apart in key areas. He's not a Jerome Bettis, he's not a smash runner, that's not what this team is anymore. The days of Franco, Bam, Foster, and Jerome are gone now. This team is a pass to set up the run, a mirror image of what the Colts offense is.
Having said that does Willie need to work on things? of course he does !
-stop the fumbling
-learn to see the field better
-learn to use his FB better
-learn to adjust his style to suit field conditions; you can't always cut hard and make pivots on a dime in a swamp.
He does need to share carries more with Davenport or possibly even Russel too. This team maybe considers getting another RB in the draft unless they are happy with Russel. If they are then get the kid more carries. Willie can't be having so many carries heading into the playoffs because if he does go down we see the scenario that unfolded this year with the starting jobs going to a bunch of guys that rarely see the ball. Willie isn't perfect but he's not the overrated schlump that some thing he is. If this kid gets an offensive line that can run block worth a **** and he continues to improve his game, the sky is the limit.