It was stated by some reporter or blogger that Charlie Strong has not done well against teams with winning records. Looking over his head coaching history that is most apparent. His best season as a HC was at Louisville in 2013. The strength of schedule, SOS, of that team was 110 of 125. On the flip side the toughest SOS his teams has faced was at Texas in 2014 which had a SOS of 5.29, 16 of 128. That was his first year at Texas and that team finished 6-6 in the regular season and lost their bowl game to finish 6-7.
https://www.sports-reference.com/cfb/coaches/charlie-strong-1.html
https://www.sports-reference.com/cfb/schools/louisville/2013-schedule.html