I didn't have any expectation for him to be an impact player in the first place, but he hasn't been an impact player.
I haven't really had a problem with our RBs this season overall, though. The problem has been the OL not blocking as well as advertised and the passing game not backing anybody off. Randle, in particular, has had his moments.
I would like to see Michael get his shot though. It's dumb to start talking of cutting the players you do have just because better players are out, but getting some competition for starting jobs going makes sense. When you're desperate for an offensive spark, you might as well open the competition up to everybody you get to bring to the game.