Hess, a first-team all-conference selection last year, came into the game leading all FCS quarterbacks in passing efficiency. He had completed 55 of 83 passes for 765 yards, with eight touchdowns and no interceptions.
Hess finished with 11 completions in 20 attempts for 117 yards and two interceptions. Bohl said the Bison took him out of his comfort zone.
"Anytime you can harass the quarterback with your defensive line, that can create problems," Wolford said. "But we let this game get out of control very early on because of self-inflicted turnovers."
Williams was not available for comment after the game. Linebacker Grant Olson, who led the Bison defense with 12 tackles, pointed to the Williams interception return as the key play.
"That was a 14-point swing. It would have been a different game without that," Olson said. "We didn't look back from there."
The game was played before a record crowd of 19,065 at the Fargodome.