Let's keep that s*** in the other thread, but the Sox thinking was this: Manny was done. If he stayed, he would have tanked, and so would the Sox's season. The Sox's viewpoint was that in the offeseason, it would have cost them more than Moss and Hansen to get Bay. So they pulled off the best deal they could. I mean, what could the Sox have done if Manny just decided to sit out the rest of the season? Check out this article from Gammons.
http://insider.espn.go.com/espn/blog/index?entryID=3513892&name=gammons_peter
I mean, Manny forgot which knee hurt. Only when threatened with disciplinary action, did he play. If you were to make the playoffs this year, you had to get rid of him.
So the question is this: Would you have been able to get Bay for Hansen, Moss, and $5 million [taking away two million from this year] during the off-season? I don't think so. So besides the high probability of not making the playoffs, you have a smaller chance of getting the caliber of player that Bay is for Moss and Hansen and $5 million in the offseason than you did at the deadline. It was a no-brainer for Theo, but a terrible position to be in.
Or...we could just say the Yankees cheated somehow. Whatever works for you.