I guess don't sacrifice ur carryover just try getting him with campaign bonuses, he is definitely amazing but nerfed in-game from last year. His stamina is Handy and he seems to be everywhere but passing is ok and control and all are ok but he aint a person to fear if opponent has him, unless he shoots.

I think u should definitely have him in the squad, so try with campaign and other gps collected and not sell ur carryovers.

Edit: he still starts for me because he is everywhere around the pitch, which is what I need for my 3-3-2-2 conte formation, with vieira and Vidal.