I don't look at Morton as an innings-eating BORP. He's pitched 80 postseason innings and has a 3.6 ERA and FIP. He's been a 3.0/3.3 guy since 4/29. He's pretty much a must-get IMO. I don't necessarily agree that we need to add a controlled SP, TBH. I'd be totally happy getting Morton and Kelly and addressing the rotation in the winter.
Honestly I've come around to wanting Caissie around if they can't keep Tucker. It won't happen but i'd be fine renting.
Please don't bother with Alcantara this season, either. He's been way too awful to take a chance on this season.