No rookie is more NFL ready than an RB. If we did our due diligence, and drafted wisely, fumbles shouldn't be of concern. This idea of "not rushing him" is without warrant. Rookie backs start in this league. All we need from Michael is 1/2 dozen touches.
I guess it is all on his inability to block and/or special teams play. That doesn't seem like a lot to ask of your 2nd rd pick. Nobody is suggesting he start over Lynch. That would be insanity, but he should be sharing time (by now) with Turbo. Should (god forbid) Lynch go down, I'd rather Michael be getting game time experience now, than his first, then.
The longer this goes on...the more I have to wonder if there's more to this story. I hope not.