I thought this was a good article that attempts to capture the many different ways that Petrino has proven to be unethical. When you look at a timeline of Petrino's multiple lies and cheating, it really brings to light what a terrible person he is. I still can't believe Louisville took him back to be one of the biggest representatives of their school.
http://www.sbnation.com/college-football/2014/1/9/5288648/bobby-petrino-louisville-scandal-timeline
http://www.sbnation.com/college-football/2014/1/9/5288648/bobby-petrino-louisville-scandal-timeline