#1 No experience
Arsenal football club is a massive entity in world football, a club that demands and requires the best in every department. It’s strange that the club would pour millions into developing training facilities, hire a world-renowned football director, spend millions on players but then hire a man that has never managed a game in his life? Surely that’s counterproductive. Granted, the Spaniard has spent some time learning his trade from Pep Guardiola, but that still doesn’t qualify him to be a manager.
Arsenal is in the midst of a transition period that is going from bad to worse, with the club in the middle of their third season of Europa League football. Both financially and from a reputation perspective, they cannot afford for this trend to continue. At the moment, Arsenal is even a seismic task for an established coach, let alone someone that’s never ever managed.