Or maybe they think Farrell is the guy who can get Masterson, Porcello, Miley, and Kelly to reach their potential.
Buccholz is just an enigma. I almost think that he should not be allowed to make any decisions on the mound when there are runners on base. Don't let him think, just do what the catcher calls. IIRC, the Sox did this for a while with not letting him throw to first unless it was called from the dugout, and it seemed to help.