Mewelde Moore is Jerious Norwood North. Plain and simple.
The problem with fantasy owners is that we often just look at rate stats and project out based on them, assuming they're an accurate measure of skill. The truth is that health is a skill, too. You could take all of ADP, CJ3, MJD, and Steven Jackson's talent and put it in the body of an RB with osteoporosis, and that RB would be worthless at an NFL level. Flat-out worthless. He'd have one spectacular carry, and then an NFL safety would come up at the end, lay wood, and break every bone in his body. Durability is a physical attribute every bit as much as speed and change-of-direction ability. Speed is just a measure of the strength of certain muscles. Durability is the measure of the strength of bones and tendons. I don't know why everyone is insistent on treating them as radically different things (like one thing is a skill and one thing is just random chance). As I said, health is as much a skill as speed or leaping ability.
NFL coaches are, by and large, very good at what they do. The NFL is a competitive marketplace, so the 32 coaches in the league likely almost all reside among the top 50 or 100 coaches in the entire nation. They know what they're doing. With that backdrop, keep in mind that three RADICALLY DIFFERENT coaching regimes have had Mewelde Moore (Mike Tice, Brad Childress, Mike Tomlin). Each one of them has seen MeMo go out and be the most effective RB on the entire roster... and each one of them has decided, independently of the others, to limit his usage. The rest of the NFL saw how effective MeMo was, yet no coach was willing to offer him big money to sign him (as opposed to Michael Turner, who was as effective in as limited of a role and who then secured a major-money contract with Atlanta). These coaches obviously know something that we, the casual fans, do not. That something might be that MeMo wears down easily. It might be that he's not durable enough to handle a full load. It might be that his stats are deceiving for one reason or another. I don't know what the reason is, but I know that the reason exists. My eyes and the stats tell me one thing (MeMo is unstoppable), but every other coach in the NFL tells me something completely different (MeMo will never be more than a replaceable role player, albeit a useful one). In this case, I'm going to err on the side of the coaches.
Earlier this year, I looked at a strange phenomenon where
the more carries per game an RB got, the less likely he was to get injured. My conclusion from that wasn't that getting more carries reduced the chance for injury, it was that coaches wouldn't give a lot of carries to an RB unless they were sure he ranked very high in the "health" skill. It's further reinforcement of the "coaches are smart" theory. They know what they're doing. If they constantly refuse to give a guy the larger workload he seems to deserve, there's probably a very good reason for it.
This is why I call MeMo "Jerious Norwood North", and why I call Leon Washington "Jerious Norwood East" (although I'll have to change that now that he's in Seattle), and why I call Sproles "Jerious Norwood West". All four of these guys, in my mind, are from the same mold. Electric talents who excel in a limited role who coaches are reluctant to ever give an extended role to. I would never bet on any of these guys being fantasy relevant beyond an RB3 role outside of PPR leagues or leagues that reward return yardage.