I think he'll be a darren sproles type back at best. He's one hit away from being out the league. I hope for his sake, it doesn't happen but I think the days of him being the main rusher are over. I don't see why people are down on Leshoure so soon. I think he's the best back to own in that backfield. I really wish the best for Best because if he keeps getting concussions, I cringe to think of what he's going to be like at 50 years old.
Is anyone really hoping for more than that? In PPR leagues finding someone who could give you 75% of Sproles production on the waiver wire would be a real coup.I just dropped McCluster for Best in my league which has deep rosters. IMO it's a lottery ticket. Best may not even play and if he does he could be very limited and he is obviously a major injury risk at this point.
But if you have the roster space and are looking for something on the ww either for depth, trade bait, or hoping to get lucky and infuse something into your RB corps then I think he's worth the look.
ETA- On a personal note, I remember the concussion Best got while playing for Cal in a game at my alma mater in College Park. He threw up on the field and was basically unconscious. Then there was the one where he flipped into the endzone and his arms went stiff, also while at Cal. I don't remember the specific NFL plays where he was concussed but I do think the major concern should be about his personal health. Dude really shouldnt play football anymore but at 23 years old I'm sure he doesnt want to hear that. Sadly as a FF owner struggling at 2-3 I'm just hoping for a short term option to play in my flex spot but I do sincerely hope he is healthy and the doctors and Lions are truly looking out for his long term health.