We've got a lot of problems that need adressing. Arthur didn't solve anything, he just steps in for Pjanic. Kulusevski is a nice addition, but he is quite raw and it's hard to figure out now if he adds anything yet to the starting XI.
The last two games have been positive for the trident of Ronaldo-Dybala-Costa/Berna, so it could solve our attacking problem pretty easily if we can establish this as the way to go from now on. However since Higgy is leaving we probably need a striker. I don't like Milik, but I don't want to spend too much either on the striker as we have more pressing issues. I'd be happy if Higgy just stays on the bench for another year and steps in later in the game or as a back-up.
Where I want to spend is to sign two world class full-backs, or at least one world-class one and one for the future. Fuck Sandro, I'm done with him. It's been several seasons of sub-par work after his fantastic debut season. Fuck Danilo and De Sciglio too, both insanely unreliable on the pitch and barraged with injuries. Cuadrado is the only revelation and decent full-back we have. Get Trent Alexander Arnold and Alphonso Davies and call it a day. Lol, just kidding, but this is the position I'd really like us to improve on as we can see that full-backs have been absolute key for offensive teams like Liverpool and Dortmund. Spend 100+ mil here and don't fuck around, Sandro does have a lot of suitors so it can be financed.
The second most important thing is a box-to-box mid. People here are milking their little ding-dongs off on Bentancur but I feel he is not that good. I just don't see it. He offers very little in attack and can be very clumsy with challenges; he's improving constantly though which is a good thing. SMS/Kante/Pogba are the dream, but they all come with a hefty price tag. We can partly finance this by selling off Rabiot, but it will barely help. Overall our midfield right now is a revolving door where sub par mids switch places with each other constantly. We need to establish a solid trio with clear roles, and Arthur + B2B would fill out those two starting slots with Bentancur or Ramsey filling in for the third depending on the characteristics of the B2B. Ship Khedira out with Rabiot and leave Matuidi to fight for a place with the B2B.
Overall I'd be happy just with one world class left-back, another great full-back and a world class mid. Three signings that need a lot of dough, but could be financed with Rabiot, Sandro, De Sciglio and co.