Cal gets defensive in second half, downs BYU 21-18

Provo • The third quarter was not the charm for the BYU Cougars late Saturday night. And neither was the fourth. California dominated the second half — a week after the Cougars used the period after halftime to beat Arizona — and took a 21-18 win over punchless BYU at LaVell Edwards Stadium. Cal’s defense completely shut down BYU’s offense in the second half, allowing just 21 yards until BYU’s final drive. “We didn’t do enough to win this game,&rdqu