Let me look at the list
Brandon Jacobs - Come on, not a Bum
Moe Williams - I don't remember so bum
80 year old Jerome Bettis - GL for a great blocking Steeler team, what he have like 300 yards that yr
90 year old Stephen Davis
Lendale White - ok, he turned into a bum but he had workout/weight problems. COP/GL to a great CJ2K yr.
Willie Parker - Really, he had a couple of good FF yrs
Travis Henry - Product of Shanny, hard runner
Domanick Williams - Product of Shanny like system, got injuried and infected
Joseph Addai - Product of Peyton Manning but did show talent, wouldn't say bum
Ryan Grant - Avg, but hard runner
Benjarvis Green-Ellis - slow but solid runner, never fumbles which keeps him on the field
LeRon McClain - GL/COP on a high scoring Chargers
TJ Duckett - GL back on a team that had Dunn and Vick
Tim Hightower - Bum, product of Shanny
Knowshon Moreno - Product of Manning
Mike Tolbert - GL/COP on a high scoring Chargers
Earnest Graham - ok, Bum... fresh legs for 1 solid yr. Good FB that got an opp to be an RB
Chris Wells - was good till he got hurt again
Hillis - he looked good for a little while
So I would say about half that list are bums or avg backs, but in many of their cases they needed support from 1)high scoring offenses, 2) rushing QB, 3) COP/GL to a superior Back and/or 4) great run blocking to achieve their double digit TDs. In his Rookie yr Richardson wasn't supported by a superior back or rushing QB and wasn't on a high flying offense. So has a bum or avg back achieved double digit TDs pretty much on his own, I would say yes but its rarer than most want you to believe.
The guy regressed last yr, I can't say he didn't. And there were so many plays where he would run to the line and have his head down looking at the ground, how do you expect to pick up any yardage like that. It was like he had no condifence in himself or the line blocking him. But I don't understand why people are in here beating their chest that its over for him. If you got him ranked in your top 10 - 15 RB then that a little high, but theres also value here. Indy is doing everything in their power to make it work for Richardson and hes going to get a chance to be a work horse... sorry if that perks my ears.