BYU returns 16 starters, including a senior QB and a talented experienced backup, as well as one of the best senior RB's the program has ever had.
Crowton inherited a similar set of players his first year, and I expect BYU to play just as well as they did in Crowton's first year.
Their record may not be as good as that team's record was - the schedule looks harder on paper this year - but I expect the team to be play very, very well. The idea that teams play poorly the 1st year under a new system is nonsense.