Some post mortem on Yamamoto:
-It seems that "the fix was in" to a certain extent in that he wanted to play for the Dodgers from the start. He took the Mets offer of 12/325 to LA, they matched it, and the Mets weren't given a chance to increase their offer.
-Article in the Boston Herald about the Sox and Yamamoto suggests they were willing to exceed what they paid Price and that was about it. Which would leave them roughly $100 million short.