When the NCAA Tournament brackets were announced (and/or leaked) yesterday, it meant the stats and ratings on KenPom.com were locked in their final pre-tournament state. And those final stats put the Virginia Cavaliers in an enviable position: ranked in the top 10 for both offensive and defensive efficiency. Only UVa and Kansas can boast that status this year.
(Quick aside: KenPom is an invaluable resource at tourney time. For in-depth ratings of each team, you'll need to buy a subscription. You should. You'll earn it back in your tournament pools.