maybe Arsenal must quickly decide to sack Wenger if they want to achieve a feat, but I see Wenger too selfish to give his position on the team to new people, maybe Wenger thinks he should retire with closed by a trophy that the closure of his career beautifully at Arsenal and he remembered as a legend of football Arsenal. in my opinion, to not like it was Wenger will remain a legend for Arsenal.
Selfish? The decision is made by Arsenal's board of director, so if they feel firing Wenger is the best solution, I'm sure they will do that earlier. But you see, Wenger still remain there. It means they still believe in him, and changing a long-time manager is not an easy thing. Look at Man United when Sir Alex retired, and Liverpool when Benitez was sacked. Those team have been struggling to win Premier League, even for just trying to get Champions League zone. Well, as a football fan, yeah I think Arsenal need revolution.