#1 Zinedine Zidane
Zinedine Zidane is an immortal name in world football. First, he achieved much success as a player and just within 3 years he won everything as a manager including an unprecedented three back-to-back Champions League titles.
Since leaving Real Madrid Zizou has been unemployed. Zidane is Chelsea talisman Eden Hazard's idol as well and if Chelsea appoint him he could convince Hazard to stay at Stamford Bridge. Under him, Real Madrid managed to play some breathtaking football, cementing their legacy as one of the best ever sides.
He also managed to develop squad players such as Casemiro, Nacho, Asensio and Lucas Vasquez into key players, while world-class players like Ronaldo, Ramos, and Marcelo also took their game to the next level under him. Like Lampard, he is also a big figure in football and he will definitely command the respect from Chelsea players as well. This makes him the perfect pick to manage Chelsea in the future.