San Francisco Giants bench coach Ron Wotus took full advantage of manager Bruce Bochy's absence Saturday by adjusting the music during batting practice. The Giants' medical staff began to monitor Bochy's heart after he experienced discomfort following a physical exam on Wednesday. Bochy, who has guided the Giants to three titles in five years, wasn't around as Bruce Springsteen played over the camp loudspeakers while Wotus supervised the team for a second straight day. It puts me to sleep.' He doesn't like it.'' ''So when Boch wasn't here, we put Bruce Springsteen on the last couple days,'' he said.