Nolan contributed a lot of goals last season, no doubt he'll get five or six this year as well.
The problem is that he doesn't have the attributes to be a premier league midfielder, and he's now filling a position that could be taken by someone significantly better.
He's a good lad to have around, and a decent goal scorer when the system is built around him. But IMO his limitations mean we would be better off without him in the team... especially now we have Tiote and Ben Arfa.