BTV accepted Rafaela and Yorke for 1.5 years of Bieber. Luis Castillo was dealt for four prospects, but only one was ranked (Noevi Marte) at the time. We can assume that Edwin Arroyo became a top 100 prospect the following year was not unanticipated.
So is Rafaela and Yorke comparable to that pair?
I also think Miami - loaded in the rotation, weak in the OF - makes a good landing spot for Rafaela. BTV gives him comparable value to Jesus Luzardo, Edward Cabrera (currently injured), and Braxton Garrett…
The Sox are probably better off trading for an ace. Signing one has never worked out…