@BaconGrundleCandy - I agree with your assessment. Michel was an explosive, dynamic college runner and something changed since he was drafted, I'm not sure what.
I have a hunch it's a mental/coaching thing, like a focus on ball security, because he looked like his old self in the preseason game against the Panthers, and was really flashing.
Check out some of his initial highlights in this video - looks special, I remember everyone being blown away by how explosive he looked. I was really excited to watch him after seeing that, but he hasn't been the same in the regular season.