Couple of thoughts, Thump.
(1) The acquisition of Gagne, IMO, was as much a defensive move to keep him away from the Yanks, who's BP was struggling, as it was an effort to improve Boston's pen.
(2) As for Beckett, not sure about you, but I had very high expectations from him when he was first acquired...2007 was not gravy, it was what I think the Sox expected.