It's not just A's-Giants, it's Zito and Harden that are due to square off today (noon PST). Both are arguably "aces in name only," with Zito paid like one and often--but not consistently--performing like one, and Harden consistently performing like one--for the small portions of seasons he is healthy.
After the game, I'll weigh in with my take on the Kotsay situation. It's one of those rare topics where the present and future actually meet, because both now, and in years to come, these articles can be found under "back issues". Enjoy the game.