Rick Carlisle is no longer the coach of the Dallas Mavericks. Carlisle tells ESPN he let Mavs owner Mark Cuban know today he was resigning calling it solely his own decision. He also says it's been a great 13 years in Dallas and it was an honor working with Cuban. He also thanked team President Cynthia Marshall and now-former Mavs GM Donnie Nelson along with Dirk Nowitzki and all the players and coaches. The Mavs said yesterday Nelson wouldn't return as GM. Carlisle won a title with Dallas in 2011. He is planning to stay in coaching.