Williams, a 2012 freshman All-American, collected five tackles and two of seven total sacks for the Trojans while putting pressure on Hawaii quarterback Taylor Graham all night.
The opener marked the debut of new defensive coordinator Clancy Pendergast's 5-2 scheme. USC allowed 231 total yards of offense by the Rainbow Warriors, only 23 of those yards rushing. They had nine tackles for a total loss of 40 yards.
"It's all about the blitz packages," Williams explained, "the offensive line doesn't know how to pick up the schemes and it's just everybody doing their assignments."
Even though the Trojans earned the win, Williams said after the game he expects much more in the future. "It was very important to come out and get the season opening game win," he said. "But I thought we should've done a lot better.