#4 Max Allegri (Juventus)
One of Sir Alex Ferguson's characteristics that made him one of the greatest club managers in the world was this ability to bring the best out of a rolling squad i.e. a squad that changes constantly.
The same thing could be said about Allegri has he has been absolutely brilliant at tinkering with his squad to get the best out of them.
Having lost 2 Champions League finals in 3 years, it would have been easy for him to walk away with his head held high but he chose to stay and this season could just be 3rd time lucky for his side.
Juventus are probably at the strongest level that they have ever been in the last few years. The depth of the squad has allowed them to push Napoli for the Scudetto - a side they have been trailing all season - as well as being through to the Champions League quarterfinals.
They have the perfect balance between experience and youth, raw talent and well-drilled aggression.
While Allegri and Juventus can often be criticized for their style of play, the ruthlessness that he has instilled in his team cannot be overlooked.