Other than last year where the team completely fell apart and 2008 when Utah had the best team in the history of their program and went undefeated and beat Alabama (who had been ranked #1 for most of the year) in the Sugar Bowl by 2 touchdowns, there isn't a game in the Bronco era where one team has won by more than one touchdown.
BYU didn't "come out" unprepared as you and others so fond of revisionist history like to argue. BYU led the game 10-7 with 2 minutes left in the first half. Is your argument that they were somehow prepared in the first half but suddenly became unprepared in the second half?
Is that your pattern?