In his 3 years while UL has been a member of the ACC, Petrino has led them to an amazing 5-10 record against teams who finish the season with a winning record (2016 stats as of this weekend). That's not ranked teams, that is teams that finish with a winning record.
Also, another crazy stat is that they play two teams each year from the Coastal Division. Here are the 2 teams they have played since joining the ACC:
2014
5-7 Virginia (tied for last place in Coastal) - W
6-7 Miami (tied for last place in Coastal) - W
2015
4-8 Virginia (5th place in Coastal) - W
8-5 Pitt (2nd place in Coastal) - L
2016
4-8 Duke (last place in Coastal) - W
2-10 Virginia (last place in Coastal) - W
Also, another crazy stat is that they play two teams each year from the Coastal Division. Here are the 2 teams they have played since joining the ACC:
2014
5-7 Virginia (tied for last place in Coastal) - W
6-7 Miami (tied for last place in Coastal) - W
2015
4-8 Virginia (5th place in Coastal) - W
8-5 Pitt (2nd place in Coastal) - L
2016
4-8 Duke (last place in Coastal) - W
2-10 Virginia (last place in Coastal) - W