A double pivot of AMN and Partey offers absolutely no DLP attributes. We are going after Partey because he is like AMN but 10x more talented in every area.
The midfield needs more balance. Xhaka offers a good balance between a Partey type player and an Aouar type player. Ceballos also offers that balance but Xhaka has the added qualities as a leader.
Only player i'd bring in to ditch Xhaka is Thiago tbh.
You realise Aouar is fully capable of playing in a double pivot. He played in a double pivot with Ndombele and did it vs Man City also. He prefers the left side where Xhaka currently plays.
He brings all the traits to the position that Thiago would. He can easily replace Xhaka. Xhaka is not that good ffs, but in comparison to Torreira and Guendouzi he is. Ffs even Ceballos makes Xhaka redundant.