2016 NCAA Tournament: Sweet 16 Preview

Kyle Terada-USA TODAY SportsThe Pac-12's last team standing hopes to remain that way after their game against Duke on Thursday

This past weekend was quite possibly the wildest opening rounds in NCAA Tournament history. Double-digit seeds had a field day, setting a record for number of first round victories with 10. We witnessed, perhaps, the tournament's greatest upset of all-time. And the tournament's greatest comeback and collapse of all-time.

After all that madness, 16 teams remain. And, possibly the biggest surprise of them all, after such an insane first two rounds of the tournament, the 16 teams still standing are all heavy-hitters. All 16 schools are either part of a major conference…