I think even when we were winning things Wenger was stubborn, dogmatic etc and in many ways I think it was a barrier preventing us from being more dominant.
I think most people knew deep down that he wasn't able to take us forward. Since 2007/2008 I was convinced Wenger didnt have it in him to win us the top prizes, for me the title should have been ours that year but we evaporated, it wasnt injuries it was just a total inability to find form.
A lot of the pro Wenger argument is based on loyalty to a man who took us to extraordinary feats a long time ago but is perpetually hitting his head against a wall.
As much as he frustrated me, for me I lost faith in him totally after the 8-2 game at United since that day I'm constantly doing what the board should be doing, looking at managers at other clubs and wondering who could do a better job.