is they haven't adjusted the game plan when it's not working. They start off in the 1st quarter using most of the play clock every play. Giving the opposing defense a chance to rest. They run a lot of substitutions allowing the defense to also make substitutions and it hasn't worked well. In a few cases they will run the clock down and still get a delay of game penalty with late substitutions and confusion. Aside from the UCF game which unfortunately gave BYU a false sense of confidence that they could just duplicate that game plan every game and get the same results.
Of course this is just my opinion and I am just a fan.