This
Is the most lucid summary I have read on the AW conundrum.He has done well to keep us top 4, I think people underestimate how well, but I do think he should move on now as I'm not sure he can take us any further. Which doesn't mean I think anyone else can in this era of the billionaire sugar-daddy.
I defy anyone to be able to predict confidently that a successor would do better, because as much as I and almost everyone else have had enough of the frustration of seeing Wenger unwilling or unable to correct the obvious failings in our team, losing him will lose the other things that have made us able to compete in relative adversity. Being a mangnet for the best young talent; the technical excellence that he has fostered; the ability at (albeit increasingly infrequent) time to play Barca-style total football; the reputation with which he enhances the club.
Winning trophies is very, very difficult. We should not confuse our desperation to at least try something new with the likelihood that it will be better.