One thing important to think about is the fact that he plays more advanced for the Dutch NT. Almost like a CAM at times. It's actually Frenkie and M. de Roon who often plays in a double pivot.
Seen some Liverpool fans claim he's not being used to his best ability playing deeper which is what I'm assuming Koeman is planning to do here for some reason. Otherwise none of this makes any sense because what the fuck are you gonna do with Griezmann, Coutinho and Wijnaldum, three players who want to play behind a striker, or does their best playing that way making runs to the box.
In fact his role for the Dutch NT is similar to Donny in ten Hag's 4-2-1-3/4-2-3-1 setup.
Could be that Koeman is envisioning a big game lineup of ter Stegen; Semedo, Pique, Lenglet, Alba; Frenkie, Pjanic; Dembele, Wijnaldum, Ansu/Trincao/Memphis?; Griezmann