I just watched a couple highlight videos on Youtube of Le'Veon Bell. There were a lot of big holes for him to run through, he takes a lot of runs to the outside (it will be more difficult to get outside of an NFL caliber linebacker), and I didn't see a lot of broken tackles for a big running back. He did looked quick, caught passes and used blocks well. I also didn't see any blitz pickup, so I'm not sure what he'll be like pass protecting for Ben.
I think he may have been drafted a round too early.
1.22) Dante Fowler, OLB, UF
2.56) PJ Williams, CB, FSU
3.87) Ben Koyack, TE, ND
4.120) Kurtis Drummond, FS, MSU
5.152) David Johnson, RB, North Iowa
6.183) Sean Mannion, QB, Oregon St.
7.214) Lynden Trail, OLB, Norfolk St.
"Before you can win a game, you have to not lose it." -- Chuck Noll