The creator of the Fremeau Efficiency Index is a colleague of mine here at the University of Notre Dame by the name of Brian Fremeau. Brian has been doing this statistical analysis work on football for a number of years --- really smart stuff.
And, his latest FEI rankings has the Fighting Irish ranked #2 in the country behind Clemson!
The Fremeau Efficiency Index (FEI) is a college football rating system based on opponent-adjusted drive efficiency. Approximately 20,000 possessions are contested annually in FBS vs. FBS games. First-half clock-kills and end-of-game garbage drives and scores are filtered out.