I think Wellens on his day can be like Andrea Pirlo spraying perfect passes all day and running the game from deep, but I've always found him very erratic and inconsistant, far more so than King or Gallagher, who seem to get a lot more criticism for inconsistency in general.
I've never quite gotten this "gets stuck in" thing so many fans cite either. I've never really noticed him actually be a very physical player or a good ball winner and if anything I find he gets pushed off the ball too easily at times. I've always wondered whether I was just missing it or his loud mouth/shouting at everyone for making a mistake give him more of a hardman/physical type of image than he actually has in reality.
I don't know, sometimes I feel like I'm watching different players to other people.