Catcher, RF/DH, pitching.
Vlad and Tucker are the obvious bats to target. There's a number of catchers they could target that make more sense than Amaya as a starter, because regardless of where Amaya's bat may end up, he's still really bad behind the plate. And take your pick of pitcher, either starting, reliever, or closer.
There is no flipside, because not trading some of these prospects is a waste of value. If PCA turns into something at the plate, a guy like Alcantara is not going to make the 26 man roster before he HAS to be put there or DFA'd.
We've wasted enough time on this 3 year window Jed carved out with the majority of this roster he's built as it is already. I'm tired of these guys acting like every single one of these prospects is going to be successful when they have successful players at those positions. It's beyond time to start moving some of them to supplement the MLB roster. No one cares if you are winning the minor league season.