I don't think BYU defense is this sophisticated and I think BYU should seriously being looking at new defensive strategies.  Even if BYU's offense is a lot better, the team will struggle against P5 without a serious defensive strategy.  TCU coahes have spent hundreds of hours developing their DEFENSIVE strategy and it takes a lot of work to be competitive in a P5 CONFERENCE to win games. The DEFENSIVE strategy should be use to guide future recruiting needs.

http://www.ign.com/boards/threads/forget-4-3-and-3-4-the-4-2-5-is-the-ultimate-college-football-scheme.182883153/

Joe Daniels

http://join.joedanielfootball.com/425-ecourse-plc-1/

TCU

https://www.youtube.com/watch?v=TSFdhsIhG6c     with GaryPatterson

http://grantland.com/features/hard-knocks-playing-defense-with-tcus-gary-patterson/

https://www.sbnation.com/college-football/2014/6/30/5818160/tcu-football-defense-strategy-formations-xs-os-gary-patterson