CTD was asked this yesterday on Twitter:

The question was presumably in response to Louisville jumping up to the last slot on the No. 1 seed line.

As I said last night:

Louisville is in the group of possible number 1 seeds, and one of the reasons why the CTD seeding model is high on them right now is their #1 overall ranking (as of Wednesday) in the Sagarin ratings. Obviously, the Sagarin ratings are but one of a set of tools confirmed to be used behind closed doors. (How they admit to using them is another story. Hopefully it's not only to resolve "descrepancies".)

Anyway, in the 13 years of historical data used to build the CTD model this season, there have only been 2 teams ranked 1st or 2nd in the Sagarin ratings at the end of the regular season that were not given a No. 1 seed. Cincinnati likely would have been a 1 seed in 2000 if not for Kenyon Martin's injury.

SeasonTeamSagarinSeed
2000Cincinnati12
2000Stanford21
2001Duke11
2001Stanford21
2002Duke11
2002Cincinnati21
2003Kentucky11
2003Arizona21
2004Duke11
2004Saint Joseph's21
2005Illinois11
2005North Carolina21
2006Duke11
2006Connecticut21
2007North Carolina11
2007Ohio St.21
2008North Carolina11
2008UCLA21
2009North Carolina11
2009Pittsburgh21
2010Kansas11
2010Duke21
2011Ohio St.11
2011Kansas21
2012Kentucky11
2012Ohio St.22
2013Louisville1?
2013Indiana2?

Any one predictor variable shouldn't be trusted by itself, but that's a pretty solid track record.