The Dallas Mavericks had an eventful trade deadline in February, clearing out future salary by sending Anthony Davis, Jaden Hardy, D'Angelo Russell, and Dante Exum to the Washington Wizards for Khris Middleton, Marvin Bagley III, AJ Johnson, and Tyus Jones, as well as five future draft picks. Jones would be waived a few weeks later. More than anything, that cleared the books of future salary, as the Mavs were threatening to be a second apron team. While they also added some draft capital, most of those selections won't be very valuable. With that trade, they didn't feel the need to trade anyone else unless they were getting something significant back. One player who was possibly on the market was wing Naji Marshall, who had arguably the best season of his career, averaging 15.2 PPG, 4.7 RPG, and 3.3 APG. His defense hasn't been quite as good as it was near the end of his tenure with New Orleans, but his development into a steady ball handler who is automatic in the paint has been a pleasant surprise.…