If Allegri can convince Can to play as a CB, then I am all for it.
If we get Manolas, it would make a lot of sense to use Can in a hybrid CB/DM role, were he could drop back and help distribute the ball between Chiellini and Manolas, when in possesion, and have him play infront of the defense, when defending.
4132, with can in front of the CBs to clean up leo brainfarts and allow our fullbacks more freedom (and himself have more freedom than a CB)..Spina, Pjanic, Bernie as mids, Dybala and CR In front. Something like that set up would make us alot quicker on counters and just overwhelming offensively.. we have the quality to have defensive balance. But will max have the guts to try something like it even in practice that is the question. Change, any change would be a plus to this zombie style of play.
Don't think he is average as a DM. Think he needs more time in that role to make it his own provided we have players like Pjanic beside him to distribute the ball well enough and look after the areas he can't.