14. Jameer Nelson
The Magic waived Nelson in 2014 after a decade as primarily their starting point guard. He was an All-Star in 2009 and a key part of six playoff runs. The six-footer struggled on the defensive end of the floor but was a fantastic distributor and shot-creator. It was time to rebuild in 2014 after Orlando missed the playoffs for the second straight year.
The Mavericks signed him in free agency to be their starting point guard. He only got a $2.7 million contract, but Dallas had brought back Tyson Chandler and added Chandler Parsons. They were gearing up for another playoff run before things quickly fell apart.
Nelson only lasted 23 games. The Mavs had the best offensive rating in the NBA as the six-foot point guard averaged 7.3 points, 4.1 assists, and 2.7 rebounds in 25.4 minutes per game. Nelson was shooting 37.4 percent from the field and was a defensive liability. Dallas felt the need to upgrade at the one and sent him to Boston to acquire Rajon Rondo.
The trade turned into a disaster for the Dallas Mavericks, and there is no telling what would have been if Jameer Nelson stayed. His subpar efficiency and defense made his stay short and landed him on this list, but Dallas was likely better with him leading their offense.