New GM Rosas steps down from Mavericks

The brief tenure of Gersson Rosas in the Dallas Mavericks' front office is over.

The Mavericks and Rosas parted company Tuesday, on the eve of Dallas' season opener against the Hawks and slightly more than 3 months after Rosas was hired away from the Houston Rockets' front office to serve as Dallas' new general manager.

A source said Rosas wanted more influence on the team and that he ultimately didn’t fit in with the direction owner Mark Cuban and president of basketball operations Donnie Nelson want to take the Mavs.

In a statement released by the Mavs, Rosas said: “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. The decision was made solely by me, as I firmly believe this change is in my best interest.”