Nico Harrison is out as general manager of the Dallas Mavericks, the franchise announced late Wednesday, effective immediately. No successor was named. No reason was given. Harrison joined Dallas in June 2021 from Nike, where he ran North American basketball operations for 19 years. He exits eight months after leading the Mavericks to the NBA Finals, where they lost to Boston in five games.
The departure comes mid-cycle. Dallas is 34-24, fifth in the Western Conference, and carries a $189 million payroll—third-highest in the league. Harrison's signature move was acquiring Kyrie Irving from Brooklyn in February 2023 for Spencer Dinwiddie, Dorian Finney-Smith, and three unprotected first-round picks. The trade drew skepticism at the time; Irving had forced his way out of two franchises in four years. Dallas missed the playoffs that spring. The next season, Irving and Luka Dončić logged the league's best two-man net rating in the playoffs, plus-16.8 per 100 possessions, and carried Dallas to its first Finals appearance since 2011.
Harrison also executed the Kristaps Porziņģis trade to Washington in 2022, clearing $101 million in future salary to create the cap flexibility that enabled the Irving deal. He hired Jason Kidd as head coach in his first month on the job. Kidd is 109-89 in the regular season and 19-15 in the playoffs under Harrison's tenure. The Mavericks' offensive rating improved from 112.5 to 118.0 over that span, second in the league behind only Boston. The front office rebuilt the roster around Dončić without trading a single pick prior to the Irving acquisition, a restraint unusual for a small-market franchise operating in championship-or-bust mode.
The timing suggests internal friction. Dallas owner Mark Cuban sold his majority stake to Miriam Adelson and her family in December 2023 for $3.5 billion, retaining basketball operations control. The Adelson family has since increased its presence in franchise decisions. Patrick Dumont, Miriam Adelson's son-in-law, now serves as Mavericks governor and has attended 12 games this season, per team logs. Harrison's departure follows a three-game road trip where Dallas went 1-2 and Dončić publicly questioned defensive effort after a loss in Denver. No interim GM has been announced. Michael Finley, Dallas's vice president of basketball operations, is the highest-ranking basketball executive still in place. Finley played four seasons with the Mavericks and has worked in the front office since 2015, but has never held a GM title.
What to watch: Dallas has 11 games before the March 1 buyout deadline and sits 2.5 games behind the Clippers for the fourth seed. The franchise typically conducts GM searches through executive search firm Turnkey, which placed Harrison in 2021. Expect a list of candidates to surface within two weeks. Finley's role will clarify whether this is a power consolidation or a reset. The Irving extension, signed last summer, includes a $43 million player option for 2025-26 that becomes relevant if the front office changes direction.
Cuban told reporters in January he planned to remain involved in basketball decisions despite the ownership transition. Harrison's exit tests that claim. The next GM inherits a roster with $165 million in guaranteed salary for next season and a luxury-tax bill projected at $48 million if no moves are made. The Mavericks have their own first-round pick in 2025 and owe Brooklyn their 2027 first-rounder, top-10 protected, from the Irving trade. The window is Dončić's prime, which means the window is now.