Napoli became the ultimate filth of the Italian football only with Sarri. They weren't like that with Mazzari and Benitez before, they aren't like that with Ancelotti now.
When he was at Napoli, he burned a lot of bridges. He drew many thick lines between Napoli and Juventus, by which he unequivocally identified himself as an integral part of Napoli and as the opposite of Juventus identity.
Considering his age, I thought it meant he was going to stay there until the end of his career. I was very surprised when he left Naples. Obviously, he's not a very smart person if he acted like that while being a Napoli coach if it was possible that he wasn't meant to stay there for a long time.
And I cannot imagine someone like him being a part of Juventus. I cannot imagine Agnelli family making this person a part of their century-long project. He's OK for ADL. He's OK for Abramovich. But not for Juventus, I hope.