Sell Loca, DL and maybe Koop too. Decide if we are going for a V-shaped central midfield or l-shaped. If it will be a l-shaped, find someone like Dybala but with legs, who can press but foremost has the creative spark. We have no player beside Yildiz suited for the role yet are hell bent on having it and put in players there and ask them to bully opponents. Of course McKennie will shine in the role, it is his main skill. Anyway, putting Thuram as the B2B in that midfield is a no-brainer, what we would need then is someone like Loca but with quicker feet, we don't need a Pirlo or Pjanic because the role of the regista is to protect and the trequartista to drop down in the build up. I am not a fan of this idea.
If we go for a V-shaped midfield. Find a Pjanic for the regista role. Then put Thuram as a B2B. Then decide based on opponents the final role. McKennie against big clubs. A more creative player for smaller teams.
Thuram is the only one I would keep regardless of formation and what other roles I put in. But for some reason he doesn't start every game.