Giants right-hander Jake Peavy has dropped three of four decisions, most recently Wednesday's 7-4 loss to the Cincinnati Reds that ended San Francisco's 3-3, two-city trip. He owns an inflated 9.00 ERA through six starts. Manager Bruce Bochy has maintained steadfast belief in Peavy, his staff ace more than a decade ago when both were with San Diego. But nobody needs to tell either man that Peavy's performances aren't self-sustaining.