I have a couple suggestions:
Niang should get a position update. He has been balling out starting as right winger. Increase work rate maybe.
Salamon has become an extremely solid central defender. He's set as a center mid and attacking mid but he will be playing as central defender and defensive...
Bartosz Salamon from Brescia to AC Milan for 3.5mil. Might want to update his position to center defender and defensive midfielder.
Kevin Constant has been playing exceptionally as a left back, might want to update his position as well.
Thanks!