What kind wonderful jobs Arteta has been doing? He wasted so much money for years, won like three non major trophies, and still stuck till this time. His performance in the club needs to be re-evaluated, and it's also a good decision if Arsenal part ways with him if he not deliver to the club anymore. .
Actually Arteta doesn't have to win the big league before he can be praised, he has done so much for the club, do you think Arsenal would have been this way if not for the coach?, actually I also wish Arteta to have won a big trophy but I cannot say Arsenal made a mistake of hiring him because if Arteta leave Arsenal that means they will not be top four or even top five in premier League, the moment they just announced his leaving a lot of clubs will be willing to pay big amount for him including Manchester United they can even remove their coach now to hire Arteta, Arsenal and Aston Villa are the only two English clubs left on the champions League and Arsenal are the one I no will definitely qualify today because they are 7 to 1 in advantage.
Arsenal is reportedly the 2nd largest spending team on players and coaches behind just Manchester City. If we compare it to Manchester City, it might look in good position but comparing it to just Liverpool which spends way less but is ahead in table, they seem to be spending more and getting less. It would still be an achievement if they perform good in champions league but it is highly unlikely and there's no chance for them to take the league title as well.