If he can stay healthy and they give him some help it's not that hard. Size, speed and offensive instinct are all well above average.
The only elite PG's I see on that list are:
Paul, Westbrook, and Rose. Lillard is knocking on the door, and Wall has made some big strides this season. Rondo's shot holds him back, Parker is an all-star type pg nor elite imo, Lowry has turned into an all-star pg.
The problem with MCW is he's injury prone, but when the guy is healthy and is on there is not realy any stopping him. Problem is he's hurt a lot and he has no help to relive some of the offensive burden.
I think in a situation like Lillard, or Westbrook even Rose, you would really see a guy like MCW shine, he's a match up nightmare for any coach.