You are absolutely correct -- career record against a team is useless. Young, Blalock, Teixeira, Mench, Nix, Delucci, Fullmer, Laird, Soriano... Wanna guess how many of those players were on the team when Ortiz has faced them in the past?
Ricky Dickey seemed to do alright: 7IP, 0ER, 0.85 WHIP against that tough Anaheim lineup.