Conference tournaments are beginning in several leagues, including the ACC, SEC, Big Ten, Big 12, Big East, Atlantic 10 and Summit. The biggest change in this week's projection is North Carolina moving up to the four-line after wins against Virginia and Duke. However, it is possible that this will change by the time USA Today Sports publishes another bracketology next week. The remaining 68 teams are expected to be in the top 16 and on the bubble. The ACC and Big 12 dominate the projections, with Virginia and Clemson set to play in Duluth, Georgia.