Well, I just know the guy from his Bundesliga days with Wolfsburg and Bayern.
It wasn't pleasant given that he liked to kick guys or throw punches(even just running next to one of our guys to chase a ball) and also liked the casual stiff elbow into the face of the opponent going for a header.
Though, the worst about him was(is) his constant diving to somehow get penalties or freekicks.
Blaming Allegri for this season is silly. We sold the heart of our team and bought a couple of youngsters and players with obvious issues (Khedira - injuries, Cuadrado - lack of end product). It was going to be tough for any manager.