Former 49ers President Carmen Policy has just been recruited by Mayor Gavin Newsom to lead the city's effort to keep the team from exiting for the South Bay - bringing the veteran football executive's long journey to build a stadium in San Francisco full circle. Policy headed the $100 million bond measure drive in 1997 that would have helped pay for a stadium at Candlestick Point. The voters approved it, but the stadium never got built. Now Charmin' Carmen will serve as San Francisco's go-between with the Niners and the National Football League. He will also help lead a referendum...