The Vertical Front-Office Insider Bobby Marks, a 20-year executive with the Nets, examines the weekly thought processes of NBA teams and offers a behind-the-scenes look at the everyday grind of putting a team together. This week we look at how teams are preparing heading into the NCAA tournament as they continue to evaluate their rosters. The trend has already started in which teams in the playoff race or heading to the lottery are waiving players with guaranteed contracts to create a roster spot.