We all love a good upset in March, and everyone wants to be the one who predicted it. There's no greater satisfaction than taking the lead in your office pool because you, and only you, had that certain 14 seed dropping a 3 on the first day of the tournament. So, whether you're waffling on what upset to pick, or just want to reassure yourself, here are the the Top-5 most clutch teams in this years tournament field.