#1 Unai Emery - Arsenal
Since taking over the reins last season, it could be argued that Arsenal are no better under Unai Emery than they were in Arsene Wenger's twilight years at the club. The Gunners' start to the season has been disappointing, to say the least and in recent weeks, they have been marred with off-field controversy involving Granit Xhaka and speculation surrounding Emery's future at the club.
Under Emery, Arsenal have lacked an identity and their defensive woes have been compounded in recent weeks, as they've continued to leak goals at an unhealthy rate. Aside from their problems on the pitch, it has also been reported that a handful of players are not convinced with his training methods and the controversy involving Xhaka's angry confrontation with the fans has only made matters worse for the three-time Europa League winner.
Arsenal are winless in their last 5 Premier League encounters and their dismal run of form has seen them slip to 8th position in the Premier League standings, 8 points behind Chelsea in 4th place. Recent reports suggest that there is a growing belief around the club that Emery is not the right man to take Arsenal forward and it remains likely that the Spaniard will move at some point between now and the end of the season.