If saving owner Frank McCourt's image is a tall order, it doesn't faze Steve Soboroff. The developer has been a prime mover in a number of L.A. civic endeavors that looked impossible at the outset, including Staples Center.On his second day as Dodgers vice chairman, Steve Soboroff was meeting with a club finance executive and the head of a charitable foundation when he learned that Major League Baseball had seized control of the franchise.