It really, to me, depends on two things. The first is, obviously, Bay's performance in Boston down the stretch and for 2009. If it's good, then fine -- even if we overpaid, a good quality LF in 2009 was something we're going to wind up overpaying for one way or the other.
The other is all about Craig Hansen. He's the part of the deal that either puts Boston into "overpay" territory or is simply a liability removed, and that depends on HIS play. Trading Manny and Moss for a player who's actually going to be here next year is clearly defensible.
For the record, Hansen allowed a run in his first Pirates appearance, so he's continuing for Pittsburgh as he began for Boston.
Once again -- I see Hansen as a talented flop in Boston -- he might even contribute negative wins. Also, even if we don't get Bay this team would have gone after a high-priced LF in the offseason anyway, be it Bay or Holliday or Kemp or simply renewing Manny. I don't see it really being a majority odds that Moss gets a starting job without following the Youkilis Trail for a couple years even if he turns out to thrive in a bench role. So on the whole, I disagree with you. I think Moss was seen as a 4th OF and trading chip, I think Hansen needed a change of scenery, and I think Manny was gone -- all things point to the players we got rid of being far more valuable to the other teams than they were to us.