His comments on the bubble for this latest update are interesting:
"The most difficult aspect of putting the bracket together isn't determining the No. 1 seeds or the top 16. It's figuring out teams 71 through 76. The pool of NCAA tournament-worthy teams isn't deep. The group listed under Next Four Out each projection typically consists of teams that are a solid win away from the field or knocking on the door. Not this season. Those teams aren't particularly close to making the field despite mathematically being only five spots away. The bubble is that weak. ..."
Teams 71-76 per this graphic are George Mason, Clemson, Columbia, Seton Hall, Fairfield, and Colorado. Stated another way, he sees Stanford and St. Joseph's as the only "first four out" teams in serious contention for a bid.