I agree ... also the Sox were suspect of his hitting and with Bogaerts he was expendable. Bogaerts wants to play SS ... that is where he is most comfortable ... similar to when Hanley was moved to 3rd when Reyes arrived. Hanley lost his mojo.
The Sox were either tied, or sightly behind or ahead of Tampa at the time of this trade. They needed Peavy and Peavy pitched a gem in LA. which turned out to be a big win