SAN FRANCISCO — Stanford coach David Shaw has won the Pac-12 Conference’s Coach of the Year award for the second straight season. Southern California wide receiver Marqise Lee also was named the league’s Offensive Player of the Year and Arizona State defensive tackle Will Sutton the Defensive Player of the Year on Monday. Oregon quarterback Marcus Mariota took home Offensive Freshman of the Year honors and Trojans freshman defensive end Leonard Williams won on the defensive side. Shaw is the fourth coach in league history to win the award in consecutive seasons. Shaw helped Stanford overcome the departure of No. …