The Dallas Mavericks have been searching for a new general manager since firing Nico Harrison in November. Team governor Patrick Dumont wanted to make a big splash, just as he did when hiring Rick Welts as the CEO, and he did just that. ESPN's NBA insider Shams Charania announced on Monday that the Mavericks are hiring Masai Ujiri to be the team's president and alternate governor, giving him an extended title. Ujiri won Executive of the Year with the Denver Nuggets in 2013, then built the Toronto Raptors to their lone championship in 2019. Dumont wants to build a championship-caliber organization, and hiring an executive who has won a title recently helps with that, in his mind. Ujiri and the Raptors parted ways in 2025, and he ended up taking this year off from the NBA. He did join the ownership group for the WNBA's new expansion team, the Toronto Tempo. According to Charania and Tim MacMahon , Ujiri and Patrick Dumont first met about the position in Las Vegas in December.…