Jorge Posada caught a marathon of a game on Friday night. Then he caught 13 innnings of a Saturday day-game-after-a-night-game. Now, he’s back in the lineup tonight and behind the plate. Sure, tomorrow begins the All Star break. But if Joe Torre can’t find a way to rest Posada with Nieves on the bench for a game this weekend, then the Yanks need a new backup catcher.