AC Milan and Juventus are in the midst of a management shakeup, but both must choose a new sporting director. Juventus has announced its new CEO, Giovanni Carnevali, who is leaving Sassuolo after twelve years, having just been promoted to Serie A. The leading candidates for the role of sporting director are Matteo Tognozzi and Mehdi Benatia, formerly of Olympique Marseille. The Rossoneri have seen Ralf Rangnick, the target of their desire to launch a new era, fall off their radar. The leading alternative appears to be Devin Özek, who has been released by Fenerbahçe. Eyes are also on 45-year-old Markus Krosche, currently sporting director of Eintracht Frankfurt,…