Nico Harrison Was Fired In November — And Cooper Flagg Carried the Mavericks Through Front Office Chaos All Season

The story of the Dallas Mavericks this season has been told primarily through the lens of Cooper Flagg’s historic rookie numbers, the Anthony Davis trade, and Masai Ujiri’s high-profile arrival to run the front office. What has been largely missing from that story is a critical piece of the timeline — one that reframes just how much instability Flagg was operating within for the majority of his first NBA season.

Nico Harrison was fired in November.

Not at the trade deadline. Not at the end of the season. November — barely a month into the 2025-26 campaign, while the season was still in its earliest stages and Flagg was still adjusting to life as a professional basketball player.

What That Means For Flagg’s Rookie Season

A general manager firing in November is not a quiet event. It sends shockwaves through a locker room, creates uncertainty about roster direction, and raises immediate questions about which contracts are safe, which moves are coming, and what the organization’s actual long-term plan looks like.

Flagg was 18 years old, playing his first NBA games, and doing all of it inside a franchise that had just lost its general manager with the season barely underway. The Anthony Davis trade that followed, the roster instability, the shifting win-now versus rebuild tensions — all of it played out with the franchise’s 18-year-old cornerstone as the only constant the organization could point to with confidence.

Ujiri Inherits a Clean Slate

Masai Ujiri’s arrival gives Dallas genuine optimism heading into the offseason and beyond. He is one of the most respected front office minds in the sport, and his track record of building contending rosters from difficult situations is well established.

But the full picture of what Flagg navigated this season — organizational chaos, a missing co-star, a midseason trade of a franchise cornerstone — makes his rookie performance look even more extraordinary than the stat line already suggests.

He was not just carrying a basketball team. He was carrying an entire franchise through one of its most turbulent years in recent memory.