I would go as far to say that hardly anyone fulfils their potential under Wenger. I can't think of a single player in recent years, say since Walcott, who has significantly improved by playing for Arsenal.
Please do point out the ones I can't remember.
It is intriguing that the likes of ian Wright have stated that Wenger should be allowed to leave on his own terms when most people who support other clubs can see that it is the Frenchman that has held the team back. I always felt that the "Invincible's" team set the seal on his fate as that achievement was never likely to be repeated. For me, Wenger revolutionised football coaching in the 1990's but the game has caught up with him and, for my money, he does seem to impede the development of young talent, especially if it comes from the British isles. The intriguing thing for me is that I always recall Arsenal being a team made up of Scottish and Irish players in the 1970s and that these nationalities are largely absent from Wenger's schemes.