I'm rooting for him to tear it up. That said, I'd suggest Marshawn read Travis Henry's wikipedia page and use it as a cautionary tale.
Hey, I grew up in Rochester, and agree with him that the area's not for everybody. That's why I moved. Then again, I wasn't getting paid millions to play a kids game. Grow up, dude. Put down the Wii bowling and hit the weights, so you don't show up to training camp looking like one of the O' Jays, like you did last year.