My feeling is that max 2 of the mentioned players will arrive besides Di Gregorio who seems to be close to completed.
Calafiori if Bologna let him go, could be a conplicated deal, I think Calafiori need to play his part, put pressure on Bologna by making them understand that he wants to leave at all costs.
Koopmeiners im not so sure, very expensive and complicated deal, Atalanta will demand alot beacuse they would not mind to keep him.
Thuram could be a alternative, but on this position I think Giuntoli could suprise everyone, with a name that media havent mentioned before, the same could happen when it comes to wingbacks.