About the only thing more surprising than Miguel Tejada playingsecond base for the first time in his career Tuesday night was MattCain blowing a lead not once but twice. Cain, like fellow All-Star starter Tim Lincecum a day earlier,was unable to tame the National League's worst offense. San Diegorallied for a 5-3 victory at AT&T Park. The Padres touched Cain (7-5) for five runs in seven innings.That's not exactly a shelling but more than the Giants could afford with theiroffense struggling so badly that Tejada a .234 hitter entering thegame tried a new position because the Giants wanted his bat in thelineup.