I mentioned this last year - it always makes me laugh when a club appoints a scout on the back of them discovering star players, only for them to just sign the same players again. Arsenal effectively spent £100m (including the value of the Mikhi/Sanchez swap) signing players he scouted for Dortmund - they could have done that without appointing him.
I'm pretty sure he brought his database of players with him from Dortmund but which hidden gem did Arsenal sign in the 2/3 transfer windows he was at the club? Guendouzi was a player Emery knew from PSG and Torreira would have hardly been unknown to any PL club or particularly cheap. Maybe he's just not been listened to but I'm not sure why any Arsenal supporter would care that he's leaving, he's contributed nothing in the time he's been at the club.
I'm pretty sure he brought his database of players with him from Dortmund but which hidden gem did Arsenal sign in the 2/3 transfer windows he was at the club? Guendouzi was a player Emery knew from PSG and Torreira would have hardly been unknown to any PL club or particularly cheap. Maybe he's just not been listened to but I'm not sure why any Arsenal supporter would care that he's leaving, he's contributed nothing in the time he's been at the club.