We could see at least 2 of the 4 as regulars..
PCA in CF and either Caissie or Alcantara, I don't see it necessarily as rebuilding if they are as good as they have shown.
Cubs have a few solid position prospects that will be ready over the next 2 seasons, cant trade them all.
Theyll have 2 seasons left with Happ and Suzuki after this year, both can bring in solid returns in trades.