I was offered Beckett for Prince Fielder straight up in my dynasty league. At first it looked like a solid trade and seemed almost too good, but then I thought about it and rejected.
The thing with Beckett is, he really is as childish as it gets. He is a know-it all. I am a Yankee fan and hate the Sox, but honestly Varitek calls a very good game and Beckett shook off at least 60% last night, it was kinda dumb of him. He thinks he can reach back and blow hitters away with 97 mph heat everytime out, and it does not work that way. His numbers (at the time I was offered the trade, about 2 weeks ago) all showed improvement in WHIP, ERA, and BAA, but the combination of pressure and immaturity kills him. I don't think he is a bad pitcher, I do think however he will never be an ace like his stuff suggests.
Sean Tracey has my apologies, we all know Ozzie Guillen is an idiot. I'm rooting for you!