Brian Sabean sits in the general manager's box on the club levelat AT&T Park and marvels at his team's place in the standings,just like everybody else in baseball. This injury-ravaged team, which was built with little margin forerror, is 25-19 since Buster Posey's catastrophic injury. They went25-15 when Pablo Sandoval was out and are 16-12 since FreddySanchez was lost. As critic after critic doubts the Giants can maintain their successand win the National League West again without a major offensiveinfusion or improvement, Sabean shakes his head and wonders. "As crazy as it sounds," he said last week, "this group might begood enough to make it to the finish line.