Wait, wait, I know this one! They should bench Ghost and put Trouba in!
I don't think it'd hurt them tbh. Ghost is there for the PP, but Team NA has a bunch of other offensively capable players and Trouba is much stronger defensively and more of a physical player than Ghost. Trouba can also play on the LD, which he did in the juniors with Seth Jones, and at the NHL level with Byfuglien.