I don't get the Foden will replace Dave thing. Whenever I see Foden play he seems a very different style of player. Much more athletic but not as comfortable on the ball. When Foden does move into centre mid I think he'll be a more box to box player. Same as Bernardo, who is also not a replacement for Dave. Closest we've got for that is Rodri.
Agree more of a KDB player for me.