Fair point, my point was mainly about his management ability, which IMO isn't that great, yes he achieved great success and we played amazing football, but as NQ alluded to it's circumstances, that's not to say he doesn't deserve credit as he achieved what he did, but for me it just shows we shouldn't have kept him on and given him a free ride for anywhere near as long as he has had it and he certainly shouldn't have been rated as highly as he was, it's taken over a decade to change that sentiment for a lot of people.
Lack of ambition from the club IMO, most other top clubs would have chopped him and got someone else in to move us forward and try and win us the CL, the CL was the holy grail for Ferguson and eventually he won it by sheer desire and making the right changes, Wenger has never done that, he was content with what he had.