NBA Rumors: Mavericks Brace for Dramatic Roster Reset with Mark Cuban Seizing Front Office Control After Nico Harrison Firing

Former longtime majority owner Mark Cuban is reportedly "back at the table." The news comes as the Dallas Mavericks fired general manager Nico Harrison, who allegedly alienated Cuban from the franchise.

According to Sports Illustrated's Chris Mannix on Thursday, Cuban, who still holds a minority stake with the Mavericks, will once again be involved in roster decisions.

"I’m told that Mark Cuban, the Mavs’ minority owner who was exiled from basketball operations by Harrison, is back at the table," Mannix wrote. "I’m also told that radical roster changes have already been discussed by Dallas’s new brain trust. Big changes could be coming to Big D."

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Cuban was reportedly not consulted about the blockbuster trade for franchise star Luka Doncic. The deal earned flak from the Mavericks fanbase and eventually led to Harrison's firing. Cuban previously expressed that he was "frustrated" with Harrison for "freezing him out after the sale" and for "not consulting him" on the trade.

The Mavericks have a rough start to the 2025-26 season, as they are tied for the second-worst record in the Western Conference (3-9). Aside from Kyrie Irving, who is recovering from an ACL tear, Anthony Davis has also missed time due to a left calf strain.

Mavericks minority owner Mark Cuban reportedly has a 'role' in Nico Harrison's firing

NBA insider Marc Stein said that Nico Harrison's dismissal from the Dallas Mavericks was a decision that has been "brewing for quite some time." In addition, Stein wrote that Mavericks owner Patrick Dumont met with Mark Cuban to inform him of the decision before making the announcement.

On Wednesday, a report from The Athletic's Joe Vardon, Christian Clark and Sam Amick said that Cuban "made a case" to Dumont in recent months that Harrison's leadership was "steering the franchise in the wrong direction."

While Cuban has yet to confirm any involvement in the Mavericks' decision to fire Harrison, all signs indicate that the billionaire may have had a hand.

With Cuban back in the fold, roster changes are expected for the struggling Mavericks. Should he decide to blow up the roster, he can build around 2025 No. 1 pick Cooper Flagg, who has shown flashes of his potential early this season.

Edited by Kim Daniel Rubinos