I agree, there isn't anything too meaningful to spend on in FA if they're out on Robertson and the pen is basically set. Pivetta with the QO isn't that great at all, and I think that's definitely hurting him in FA, i'd be PO'd if I were him LOL.
Trades are possible but I don't see them bleeding Iowa for Cease etc. Maybe some guys in the low minors they'd trade, like Rojas.
If they want a 8-10m cushion under the LT then they only have about 22-24m left to spend.