"I would like to thank Avery for his valuable contributions to the Mavericks organization," president of basketball operations Donnie Nelson said. "Over the past four years, he has been an integral part of our team’s success. We wish AJ nothing but the very best in his future endeavors." "It is never easy to relieve a coach of his duties, especially one of Avery’s caliber," owner Mark Cuban said. "He is a talented coach and I want to thank him for his efforts over the last four years and what he has done for this franchise. We wish him well in the future." Mavs Moneyball | Dallas Morning News Mavericks Blog