Untested assumptions about the SEC

1) The SEC doesn't play anyone out of conference.

2) The SEC doesn't have to play anyone out of conference, because the conference is so tough?

3) SEC teams loose an inordinate number of games to conference teams thus the SEC doesn't have to play a tougher out of conference schedule?

"1" May be true, it may not be true.  this can be tested by comparing the final standing of SEC School's out of conference opponents to other conferences

if true "3" does not prove "2".  SEC teams beating in each other only proves that the quality of the teams in the SEC are similar.  They could be equally bad, good or mediocre.  The only way to verify the SEC's strength is to compare the quality of opponents it plays out of conference to the quality of opponents other conferences play, and their records.