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FireBednarsSuccessor
Odegaard, Martinelli, and Saka still exist, though. I think Havertz's finishing will be better when he's asked to operate in a different role. He really only needs to replace Xhaka's goals, if that.
I don't disagree with the broad strokes of what you're saying, but if you get all of your targets Kai would not really be replacing Xhaka's role or minutes. Rice would. Kai would be replacing Jesus's minutes if he won a starting spot, or Nketiah / Trossard's if he ended up in a 6th man role for you.