Six years ago, to fund his MBA program at Dominican University in San Rafael, Chris DeMarco worked full-time for Isilon, a data-storage company. Before attending night classes in global management, he slogged through a 9-to-5 grind of spread sheets, conference calls and computer software. [...] set to oversee Golden State's summer-league team in Las Vegas the next week-plus, he is considered one of the NBA's more promising young coaches. Though he still sits in the second row of the Warriors' bench during NBA games, he fulfills much of the criteria front offices eye: an ability to relate to players, high basketball IQ, experience under respected mentors and, of course, a dogged desire to improve. While the summer-league head coach is typically one of the organization's top assistants, DeMarco ranks behind at least four people — Mike Brown, Ron Adams, Jarron Collins and Bruce Fraser — on Kerr's staff. By the time he transferred from Division III Edgewood College in Madison to Dominican in 2008 for his final season of eligibility, he knew that his best shot at a professional basketball career was on the sidelines. DeMarco started all 29 games for the 2008-09 Penguins,...