I'll just repost what Scholtz put up earlier:
2012: Eastern Illinois: 8th in FCS in scoring offense http://web1.ncaa.org/mfb/natlRank.jsp?year=2012&rpt=IAA_teamscoroff&site=org&div=IAA&dest=O
2013: Eastern Illinois: 1st in FCS in scoring offense http://stats.ncaa.org/rankings/change_sport_year_div
2014: Bowling Green: 56th in FBS in scoring offense http://stats.ncaa.org/rankings/change_sport_year_div
2015: Tulsa - 21st in FBS in scoring offense http://www.ncaa.com/stats/football/fbs/current/team/27
Based on this, he has been an OC in FBS for 2014 and 2015. By my count that's 2, pre-school math junior try to keep up. Yes, I know he's been an OC since 2011 (when he was coaching at Temple High School).
Stop being lazy and do your own research before you try to talk shit using other ppls info. A simple google search shows that the highest he got in 2 years at the FBS level is 21 - not 56 like you said - even with the info in front of you.....and 21st in the country at the FBS level means he did better than most teams in current P5 Conferences..... and he climbed more than 35 spots in 2 years.. at 2 different schools.... spin all you want, you tried talking out your rectum and it stunk... and you did it with enough info to actually know you were wrong.... just stop.....