This signing doesn't bother me as a Sox fan. He's struggled against us, and has struggled mightily in the playoffs. I also believe he's damaged goods. He has pitched a LOT of innings the last two years. What he did at the end of last year was almost inhuman, and potentially damaging to his arm in the long run.
Would've been nice to see the guy go home where he said he wanted to before the money was brought up, but that's nothing new in today's sports.
Burnett, Lowe, and Sheets become the big competition of the offseason now. If the Yanks get one or two of them they will definitely be back in the playoff picture.