I remember seeing Arteta make is debut at Southampton, on loan from Spain. Like Gomes he lacked match fitness. However what was clear was he was an extremely intelligent (and classy) player as well as being able to handle the physicality of the league. As he got fitter and strong the continued to improve into one of the top players in the league.
I got the same sense from Gomes today as I did from Arteta's debut. I think he's probably a bit slower but a bit stronger, and that allied to the more cautious approach of
Moyes compared to the attacking approach of Silva will make it unlikely he's moved to a wide position like Arteta was (albeit with lots of success).
Considering it's his first competitive game in about 5 months it's a very impressive debut. Made the game look very simple.