If you're looking for a late dark horse in Rocket City, I'd bring 2815 into the mix. Criminally unpicked 15th seed of 64 at Palmetto with
mad ups that made Frank's blog. With "just" 52 teams there and experience, I think they've got the potential.
(Yeah, I was with 2815 from 2009-2013. Would say it even if I wasn't.)