I'm surprised this poll is as close as it is. There's no way Wenger could have continued. It was the right decision, and still will be regardless of who our next manager is or what they achieve.
Wenger should have continued and should have played a part in pulling a successor. When everything was agreed upon, then he should have stepped down. It is ridiculous that he was sacked or allowed to walk or whatever at a time where there were no obvious candidates to replace him.