I don't think to be fair that I or P'N'G actually disagree that the manager is the problem, i think where we disagree is why he is the problem
You are saying that Southampton is a result of a megalomania to instill passing football at the exclusion of all else, I think the problem was a complete lack of any tactical plan full stop....it was more a case of putting the shapes in the right hole and hoping for the best and believing that would be sufficient as we are playing Southampton and not Man United/Man City/Chelsea
That and the over-reliance on Ozil to be the instigator of everything we do in attack, and when he decides he can't be bothered it all goes to pot. Ozil wasn't a victim of wenger ball on saturday because he has played so well in so many other games, he was just outright poor and maybe that is Wenger's fault because he has a player who doesn't want to be here anymore because he thinks he is playing for someone who doesn't have it in him to motivate these players into a title winning side.....but i can't see it was a result of any tactical plan.