Buster Posey stood patiently at his locker before Tuesdaynight's Bay Bridge Series game, getting an education on the bestcatching the Giants have known during their timein San Francisco. Interesting, in that last year he gave Giants fans the same. "Bengie (Molina), Eli (Whiteside)," Posey said when asked if hecould name some of his predecessors. "Mike Matheny, Benito Santiago... I'm leaving some out. Brian Johnson. Let me think somemore."