Boise State transfer Chibuzo Agbo scored 16 of his season-high 21 points in the second half, Josh Cohen added 18 points on seven-of-eight shooting and USC beat Grambling 80-69 on Sunday. Desmond Claude scored all his 14 points in the second half for USC and finished with five rebounds and five assists. Reserves Wesley Yates III, Claude and Agbo started …