I quite like him in the opposing half, but we're rarely in there anyway. He can still be a threat up there, and why he looks decent in games like against Fulham. Put in a couple of good crosses today, but that was it.
Defensively he is crap. Really poor. Much worse than Valencia who, under LvG anyway, became a strong defender when his attacking prowess deteriorated. Young is a makeshift option, the kind that you'd be fine with starting in home games against the bottom half, but definitely not in away games against the top sides. He is all over the place positionally.
And definitely not captain. It's just a weird choice that seems to be on time served and not on overall influence.