After being hired on August 1 to lead the Mavs out of the darkness, GM Gersson Rosas quit his job on the first day of the new NBA season. There reportedly was a power struggle in the Dallas front office. From the press release: “I made the personal decision to resign as General Manager of the Dallas Mavericks after determining that the position was not the best fit for me at this point in my career,’ said Rosas. ‘The decision was made solely by me, as I firmly believe this change is in my best interest. Mark Cuban asked me to reconsider my decision, but graciously accepted my decision and we part as friends, Rosas continued. ‘I would like to thank Mark and the Dallas Mavericks for the opportunity.’ … ‘I was disappointed when Gersson told me of his decision, but I understand and all of us wish him the best,’ Cuban said.’”