You must disagree with the $17M net value given to Castillo. (I do, too.) That is half the value they give Duran, who do think is over-valued by them.
Rafaela is valued at 12.3, but I'm sure you don't think he has any value to the mighty Mariners, either.
If we sign Teoscar, I'd trade Duran and Rafaela for Castillo and a little cash.