Smith's taking too long. (For FF) He needed to be a good backup right away since the start was late.
One thing that Best inadvertently hurts him with is he doesn't get a chance to get the work in and get confident after the injury.
At some point later on in the season, if I were Schwartz, I'd get Smith more reps hope he does well and increase his trade value. While doing that, he also helps keep Best healthy for 2011.
Their line isn't horrible anymore, but they still need better players. If a coach/OC is going to game plan for a ton of carries by one RB, the quality of the OL has to affect his risk to injury too.
I guess I'm saying when it's enough experience for Best, leave it at that. In Best, they seem to have landed a vital piece to rebuilding that team. With impressive WR, QB, RB, and TE, if they can hit the OL in the draft next year or in free agency, that O could be one of the most improved in the NFL almost instantly. I think they'd better be careful with Best.
BTW I think Smith is a decent NFL RB that might (eventually) sign elsewhere or get traded and we'll hear from him again. A buddy of mine disagrees and calls him Kevin Jones II.