Steven Jackson. When you look at everything he did under arguably the least talented team in the NFL, you really have to wonder what he would have done had he had an actual offensive line or an offensive line that didn't play scrubs like Alex Barron at left tackle. This is a guy who did everything for the team, left it all out on the field, and never complained. While Faulk and Dickerson are both amazing backs who deserve their HOF statues, you really have to wonder what Jackson would've done behind Jackie Slater or Orlando Pace. Hell, the only time he had a decent offensive line was 2006, where he nearly broke the 2,500 mark for all-purpose yards and had ninety catches.