If Aguero and Haaland were similar ages I don’t think there’s any way they’d ever end up at the same club together. So the “he’d have to find a way to fit them both in” argument would never materialise.
But if it somehow did, I don’t see any way Guardiola is playing both of them. On the rare occasion Alverez plays with Haaland he’s asked to do a job I don’t think he’d ask Aguero to do.
It’s got to be one or the other for me. And it can only really be Haaland, as treacherous as that sounds.
And yeah, Kompany for Aki, Stones or Akanji, depending exactly how he wants to play it back there.