It was a terrible move to begin with, as Italian football isn't really made for the modern CB in today's game. Add the fact his first season was under Sarri and then Pirlo, its no surprise he didn't do well to begin with. Under Allegri, he did win Juve's player of the season last year. He has all the qualities to be an elite CB and if Tuchel can make Christensen look solid, I look forward to his work with De Ligt.
Bremer is a classic last ditch tackler CB. Poor on the ball and plays in a counter attacking low block. These CB's won't get you far as we have seen with Zouma.