With setup man Sergio Romo back in his normal role of pitching the eighth inning, the Giants certainly feel a lot better about their bullpen. On a day when starter Jake Peavy failed to make it out of the fifth inning, San Francisco manager Bruce Bochy used a steady stream of relievers to shut down Arizona and preserve the Giants 4-2 win over the Diamondbacks on Saturday. The Giants' bullpen, which began the day tied with Cincinnati with a major league-worst 17 blown saves, combined for 4 2/3 scoreless innings.