Although I think UNC has almost no chance at all at going undefeated, I would say there's a better chance of that happening than an 8/10 seed winning the tournament. Even a 6/7 seed really. Going by top 25 rankings right now that would be teams like Kansas, Miami Fla, and Davidson. Although I can see those teams possibly making a bit of a run, I can't see any of those teams winning (maybe KU is they really, really develop as the year goes along, but right now no way). I'd say 20-1 is pretty fair odds.