In a way this clubs again become such a success machine that everything is a routine now and maybe smart to change the face of some positions it's Italy after all.
Looking from outside can't think of a reason they may had a falling out.
What exactly makes Zidane his perfect replacement like some suggest here. Marotta has proven record with transfers. Zidane is more of a Allegri replacement if we fail to win CL.
Even if I heavily disagree with many of his late decisions I adore him for what he turned us to, considering where he picked us up. He is an absolute legend and the face of our recent success