I don't think we really know anything about Pead that we didn't know predraft. Fisher is an experienced coach with a good RB track record for drafting and developing running backs. Some players take a while to "get it" and Pead is no exception. I think Pead is a very nice buy low. It always bugs me when guys like EBF get all high and mighty and act like they have NFL talent-scout type abilities when they don't even get a chance to see a player play.
I saw him play plenty when he was at Cincinnati. He isn't that good.
Truth is, Pead should be treated just like A.J. Jenkins.
The critical difference is that Jenkins has been losing PT to
veterans whereas Pead has been losing PT to a
rookie. With Jenkins, you can make the excuse that he isn't playing because the guys ahead of him have more experience and are less likely to make rookie mistakes. With Pead you can make the excuse that...well...there is no excuse. Daryl Richardson comes from a lower level of competition, had fewer touches in college, and was drafted much lower.
And yet the Rams coaches play him over Pead every week.
You will find lots of examples of young players who sat behind less talented veterans before emerging as stars. However, you won't find many examples of young players who sat behind a rookie teammate and emerged as stars. That's the big difference between Pead and Jenkins.