You may have heard of ESPN's advanced statistical ranking system, known as FPI. There is some debate about it, mostly because ESPN doesn't share many details about how it is calculated. At one point, FPI had Mississippi as the best team in the nation, and it is currently ranking Southern Cal as the sixth best team in the nation, despite their 3-3 record. I decided to investigate how accurate of a ranking system it is. The next paragraph is a brief explanation if you aren't familiar with FPI.
FPI assigns a point value to each FBS team, so it is able to rank all of them from 1-128.