Seems to me that if Breslow and his team are able to work some magic with a bunch of talented arms, and *IF* control improves for lots of them, the Cubs could be in a way different place trades-wise. A year from now, a lot of the good-arm pitching guys could be up in high minors, big-league ready or close, and in a position where other teams might be able to justify valuing them pretty highly in trade. And *IF* Hoyer was to hypothetically add Senga, with Taillon, and *IF* hypothetically Stroman does not opt out, the Cubs might have a fairly full rotation moving forward. IN other words, Hoyer might be able to trade a good, high-minors pitching prospect or two, without exhausting his stash.
Cubs really haven't seemed to have a perceived surplus of anything since trading Soler and Gleyber. It would be kinda weird to have a surplus of talented young pitchers, so that you could trade a couple of them to pick up a catcher or a 3B.