in a 4-3-3 Mirallas surely isn't bad, but there are better options out there.
I think that he is at his top in a team like Everton, a step up, might be the step too big for him.
I know it is still early in the season, but he doesn't even get a chance to be used as a substitute.
I have a feeling it will go the same way as with Elia for him, which, IMO, would be a big mistake.