“I arrived [five] years ago [in my first season at Juventus],” he told a press conference at the club's Cobham Training Centre.
“I think that the value of the players is not the same, or the talent, as there is now in our team at Chelsea. I am sure there is more [talent] than I had at Juventus in my first season, but we must understand that with only the talent you don’t win.
"We must add running, intensity, sacrifice, the want to win the ball when you lose the ball, all of this.”
“All of this and we are working very hard to improve this aspect because it is important to understand very quickly and find the right way. I am confident about this because the group have great commitment and they work hard.
"I am very confident about this.”
“I have an idea of football, but I have ideas and principles of the game that when you play four at the back or three at the back they don’t change,"
“I am ready for the opportunity to change something because when you start a season, you start a path. You must understand if you idea is good and then, if not, change to play three.
“It is important to work and It is important to work and understand, step-by-step, game by game to understand what best suits.
“I started my career to play with 4-2-4 and to play with full backs. I won two championships and got promotion with Siena and Bari.
“This type of system and I started to play this type of system with Juventus and then I changed it because it is important for a coach to understand the options in your squad and find the best solution for the team.”
So basically he is telling them (Chelsea) you have more talent but they (Juve's 1st squad) had balls and character.