This college basketball season is already among the most chaotic in recent memory, as Kansas and Louisville are the only traditional major conference powers in the top five of the AP Poll. In a season where the mightiest teams have struggled to string together wins, the NCAA Tournament is primed for a few shocking defeats, with these five blue bloods already on upset alert.

5. Duke

Sure, Coach K and the Blue Devils are No. 7 in the country, but have they looked all that impressive this year? We just watched them get bailed out by the refs against North Carolina and Florida Stat in addition to recent scares against Boston College and Syracuse. Outside a win over Kansas (in the first game of the season) and a road triumph against Michigan State (who are now unranked), there aren't a whole lot of impressive victories on their resume. Inexperience outside of Tre Jones could come back to haunt them.

4. Villanova