Di Matteo won the CL with Chelsea but no surprise when he wasn't retained due to indifferent league form. Cup competitions are nice but a poor gauge to judge someone you want to rebuild a team.
This week would have been very difficult with the fallout from the superleague fiasco which I'm sure impacted on the players as well as the manager. The team looked flat and don't blame Arteta this time round. The Villareal will hopefully get them focussed again.
The events of this week make me think that unless he wins the Europa League, Arteta will be sacked as it will help deflect attention away from the Kroenkes and make it seem like a new start. I previously thought he would be given time into next season regardless of how this season played out, but with our form the way it is, not hard to justify if they did decide to get rid.