I think it works both ways, he is definately isolated through the system (like the forwards were last season), but he does seem a little lazy (i suggested he might be carrying an injury and who else do we have).
A couple of times early in the first half, there looked a good opportunity to fire the ball across the area and no one was in the box (where Campbell should be), which seems strange because 15min earlier they were doing it as a warm up drill and they were bombing the box.
I do think he should have scored his chance in the 2nd half.
He also seemed close to Brewster last season and I wonder if Brewster leaving has unsettled him.