With Mitchell, I still hold out a modicum of hope. I suppose that this is only for the fact that the "braintrust" probably has Mitchell at a higher level than he should be.
Granted, WS isn't all that high of a level, but WS is still at the highest level Mitchell has ever played. Moreover, given him coming off an injury, and having somewhat raw skills, I'm not all that surprised that he's not doing well.
So, I preach patience with Mitchell. [For now.]