I think it is too early to completely bash all of Theo's 2006 moves. The Beckett trade was something he had to do. We needed a number 1 starter and that is what he got. Was he as good as expected? Of course not, but you can't write him off just yet. It hurts that Hanley won rookie of the year, but his biggest strength (his speed) would not have been utilized properly here anyway. Sanchez will be a good pitcher, but he won't be Josh Beckett. Mike Lowell has also had impressive defense and a decent bat, very underrated player IMO. Even with Hanley and Anibel's success, I still have to feel we are the winners of that trade.
We also needed to get Mirabelli back at the time. Everytime Wakefield went to the mound it was basically a guarenteed loss because none of our catchers could handle the knuckleball. Sucks for us that Meredith became so good so quickly, but we had to give up something to get Mirabelli back.
Willy Mo Pena for Bronson Arroyo? At the time we had extra pitching. Kind of messed up how Bronson signed the extension and then got dealt. Not the classiest of moves, but Willy Mo showed his potential and had a rather good year for us. The full value of this trade will be realized if he either starts or gets dealt. I doubt if Drew signs then Pena sticks around, which is unfortunate because he looks to be a 30 HR guy in the future, especially if he keeps being Ortiz's little sidekick.
Trading Renteria for Marte was a good deal. Probably the best that Theo made last offseason. Too bad Marte got flipped back in the Crisp deal, but again we haven't seen the best of Coco yet either. Losing Shoppach in that deal was dissapointing, but he can't hit anyway so it wasn't too big of a loss.
All in all not a great year for Theo last year, but definitely doesn't deserve to lose his job. He isn't God, but thankfully he isn't Dan Duquette either.