No.

Gnabry's talent is there for all to see, he'll have bad games but his talent can't be questioned, his pacey attacking is something we've lacked a long time.

Wilshere on the other hand I've never understood the hype about, he's not a top talent IMO, having seen plenty of him he's not a matchwinner and doesn't seem to possess any really special talent, if he wasn't English noone would give a monkeys about him, based on what I've seen of him so far I don't really rate him that highly, in addition to that his behaviour is questionnable.

Ox-Chamberlain I do rate highly despite him having produced little so far, but the talent is there for all to see, likewise with Gnabry, it might not work out for him but he certainly has something special about him.