a guy who can go down at any moment and has in college and now pro..no thanks, give me offensive lineman...running backs are really a risk, but I agree, backs like Peterson, Tomlinson, and Barber are studs...I think the shelf life for a running back is 4.5 years....
Cept he'd be not nearly as nice without the best run-blocking offensive line in football. Put him back there and he can do some amazing things... but put him on a crappy O-line and no one would even be considering him #1 right now...
