it was to play the better rated defense in every bowl game ATS and a bit on money line for underdogs
did very well LY but was also the first time i heard about it. something to add into your research but would not play blindly but i doubt you would ever get buried by constantly playing the team with the better defense
https://www.masseyratings.com/cf2018/fbs/ratings
fav spread Fresno 9 vs Ariz St 57
fav spread Tulane 59 vs ULL 109
fav spread Utah St 72 vs NoTx 95
dog spread + money line EMU 56 vs Ga So 64
fav spread App St 24 vs MTSU 70