This year Lester has a better ERA with Shop, Beckett with Salty,Buch with Shop, Doubie with Shop, Dice-K with Salty, Morales with Salty (biggest difference in a starter, almost 3 runs), Bard with Salty, aceves with Shop, Cook with Shop.
FWIW, performance of Sox pitchers with Salty has been worse than with Shoppach / Tek. You'd have to further break down that by pitcher to determine distribution of who has caught whom; at which point the samples would probably be worthless, but it's something. With Salty; Sox pitchers have walked more, K'd fewer, given up more HR, and had a higher BABIP than with the others.
Salty: 4.63 ERA / 5.01 RA. 3.1 BB, 7.2 K, 1.1 HR (303 BABIP)
Shoppach: 3.72 ERA / 3.92 RA. 2.9 BB, 7.2 K, 0.9 HR (275 BABIP)
Salty: 4.63 ERA / 5.03 RA. 3.5 BB, 7.1 K, 1.1 HR. (290 BABIP)
Varitek: 3.56 ERA / 3.85 RA, 3.1 BB, 8.1 K, 0.8 HR. (284 BABIP)
All of the samples are small, with some as low as 5 IP, but it seems to be a pretty even split of guys, and for some a single game can swing it one way or the other.
2011 is harder since they didn't have many guys that they both caught. Lester Tek had a better ERA but more than 100 fewer IP.
Miller they both caught, Salty was 3 runs lower. Lackey salty was lower, caught 90 more innings. Wake, Beckett, and Buchholz were basically caught by one or the other. Aceves was a bit lower with Tek, Papelbon a bit lower with Tek, and Bard much lower with Tek.
Edited by Cellar-Door, 29 July 2012 - 06:45 PM.