We are asking him to do something different in a team that is set up a certain way and very precisely coached. It isn't easy.
That said, you would like to think he will start producing something fairly soon. As far as wet nursing is concerned, if he has grown into the role in 3 months time then none of this will matter.
I wouldn't have bought him, but then I don't really know what I am talking about. Arteta has made me look very stupid several times in recent years so I am going to trust him on this one.....