#5. Juan Mata
Jose Mourinho might as well be one of the best managers in the game, but he has his fair share of mistakes. ALSO ON Football: Top 10 most skillful players in the world (With Pictures)
Benching Juan Mata is one of them; the Portuguese coach preferred Oscar as a playmaker. The Spaniard won Chelsea’s Player of the Year in 2012 and 2013, playing a pivotal role for the Blues. Mourinho benched Mata on several occasions, an action that sparked the anger of Chelsea fans. Well played Jose, well-played!