Even if we reach top4 I think that sooner or later we will start to meltdown.
I mean, we reach top4, Arteta stays, stupid man-management as well as poor and zero flexible tactics will stay with him. The guy won't be able to cope with us playing CL, Premier League and the cups at the same time.
And I am saying this because it is pretty clear that this guy is incapable of instilling some degree of stability in performances. We are quite similar to Ole's ManU, we have good patches and bad patches, and that rules out any hope of sustainable improvement.
Don't get me wrong, if we get top4 he should stay, it would be silly to sack him, but this is his 3rd season and we play like trash. What should make us think that things will get better on his 4th season?