De La Salle prevailed 14-0 in Concord in a battle of Northern California’s top two teams the past six seasons, reducing the most celebrated and anticipated opener in regional history into a learning experience in how not to deal with the Spartans. The Bulldogs had four first-half turnovers inside De La Salle territory, punted four times, turned it over twice on downs, made uncharacteristic mistakes and generally looked out of sorts in suffering their first shutout since 2004, a year before Kris Richardson took over as head coach.