I have followed Rhule's career ever since he was a linebacker at "Linebacker U" Penn State. He was a true student athlete, that is more than just sports. He has a Masters in Educational Psychology. These are good foundations for coaching.
He coached at Albright, Buffalo, UCLA, Western Carolina and of course Temple and presently Baylor. He coached DL, LB, ST, TE, OL, RC, and was an AHC as well He was assistant OL Coach for the 2012 Super Bowl Champs Giants. Point here: Aside from QB, he is well versed across the board on all phases of coaching positions. He is also quite good at building a strong coaching staff around him. I've watched him on the sidelines. He knows how to motivate players and if necessary kick butt.
Look at the success of his graduates getting into the NFL: Jalen Hurd, Derrek Thomas, Mat Ioanndis, Tavon Young, Hasson Riddick, Dion Dawkins to name a few.
He successfully reestablished to Division I programs at Temple and at Baylor. I personally witnessed his team's defeat of PSU which hadn't happened in several decades.
This guy reminds me a lot of Parcells. He is my vote for HC.