I don't think he's a bad player but Tuffnutz is right in saying that ideally, we'd get a more mobile player in there who is better at closing down the opposition, making interceptions and in general dictating the tempo of our game more. Arteta doesn't really do that, he's a neat and tidy passer but he fails to really set the tone for us. Maybe you can counter that by saying that should be Wilshere's responsibility, but when he's not available we need others to step up to the plate.