Not being funny, but Wenger has won three FA Cups in the last four years, whilst the great Spurs haven't won a trophy since 2008, yet Arsenal have been a shambles. Yes, they have under performed from previous years, but taking account their finances compared to other competitors are they doing that bad.
I think Arsenal fans are going to have quite a shock, if any manager isn't given sufficient funds, & start tumbling down the table, that perhaps Wenger wasn't as bad as they thought.
Hopefully, them West Ham & Everton, who all think they have a god given right to be doing far better than they deserve get relegated next season. Won't happen, as there are so many poor teams, but it would be great if they did.