Hang on, now who is putting words into whose mouth? You picked me up on that.This season has provided the long missing evidence that can be used to judge the real reasons for our failure over a decade. You say no, everything was understandable prior to this season but now some terrible anomaly has occurred.
The new money has yielded some results, it's yielded Ozil, Sanchez and Cech and two FA Cups. It was a good start but he's failed to push us on and if he can't win the league this season then I doubt he ever will. So yeah, he should go for that, not because of the period before that when you agreed he earned a new contract.
He deserved a chance to push us on. He's failed to and so he should go. But he's failed to because he has flaws (as will the next bloke of course). And those flaws were always there. But when his fitness methods and knowledge of the European game meant we were better than everyone else it masked those flaws. Now other clubs have caught up and overtaken us, the edge Wenger once had is no longer there and he's not been able to step up. But he has his strengths too, I doubt many managers could have overseen a stadium move that complex and kept us top 4 with a (relatively) limited budget (whether self-imposed or not). He'll leave us with a very good squad and with plenty of money in the bank to ensure a successful future if the new guy spends it wisely. The last 10 years have not been particularly successful but neither have they been an unmitigated failure or disaster.