Why would you ever care about trading a borderline keeper in a compete year? Just re-draw your borders in the offseason. You had no starting 3B, an excess RP, and Motte has gotten the last couple of saves in Chicago. I thought it was a no-brainer for you.
I probably won't even keep Rondon. He's just (likely) going to be slightly better than Shreve or Geltz going forward.