Jimbo,
I think they are done FOR NOW.
Like Salsa said, I'm concerned about their catching situation.
Is Varitek going to hit his weight?
Is Bard all of a sudden going to be able to handle Wakefield's knuckleball (something he couldn't do 3 years ago when they jettisoned him to San Diego)?
Also, will Mike Lowell's hip hold up? With Kotsay out until at least May, who plays first if Youkilis has to be moved to third? Brad Wilkerson?
I am VERY happy about the pitching staff: Beckett, Lester, Dice-K, Wakefield and Penny is a very good starting five, and they have an ace in the hole with Smoltz hopefully by June.
The bullpen is the biggest improvement on the team: Papelbon is well, Papelbon. Masterson, Delcarmen and Okajima are for the most part solid. Plus they've added two good arms in Ramirez and Saito.
Boston has a VERY formidable lineup this year. With that starting 5 and rock solid bullpen, I would say adding a stud catcher is the least of their worries.