DALLAS — The conversation started with a name, and the name was LeBron James.
Jason Kidd, the Dallas Mavericks head coach and one of the few people who faced LeBron James in the Finals and won, sat down with ALL-STAR Magazine before the 2026-27 season opener and said what he has been thinking since April: Cooper Flagg is on a trajectory that belongs in that conversation. “I think he’s on pace when you talk about LeBron and what he did as a young player,” Kidd said, “and then also Cooper’s ability.”
Then Kidd named the one thing that would actually prove it.
Championships. Not the 21 points, 6.7 rebounds, 4.5 assists, and 1.2 steals that Flagg averaged as a rookie across 70 games while shooting 46.8 percent. Not the 49-point game he put up as a teenager, the all-time record for a player that age in NBA history. Not the three consecutive games with 30 or more points that no rookie had ever managed before him. Those numbers made the case for the Rookie of the Year award he won in April. What they cannot make the case for, Kidd said, is the kind of career that puts a player in the company of James and Michael Jordan. “I think all greats are judged with championships,” Kidd said. “Not so much stats, but that’s the one stat that will stand out.”
The comment is not pessimism about Flagg. Kidd has been watching him too closely for too long to harbor doubts about the talent. The context for that familiarity stretches back before the 2025 draft, when Flagg worked with Team USA’s Select Team against active NBA players in practice. Afterward, Kidd took him to dinner and asked a simple question: who was the hardest to guard? Flagg named Curry and LeBron. Kidd then went to both of them and asked his own version of the same question. “I asked two future Hall-of-Famers, Curry and LeBron,” he said on the Dan Patrick Show earlier this year. “I wanted to know the truth, so I went to those two and asked them: Can Cooper play? They both said he’s very special.”
That chain of validation — the player naming the standard, the coach going directly to the standard to confirm it — is how Dallas has been thinking about Flagg since before he wore the jersey. When he became the youngest player to score 35 points in an NBA game last December, it looked like the franchise had landed exactly what it believed it was drafting. Last season’s final record — 23 wins, 13th in the Western Conference — looked nothing like the kind of team that would deploy a generational prospect responsibly. And yet Flagg held up, put up numbers that invited the comparisons Kidd is now making in print, and earned the hardware.
What year two requires is something different. Defenses had an entire offseason to study Flagg’s tendencies, his preferred spots, the situations where he defers and the ones where he takes over. The league-wide season preview places Dallas as a team with playoff ambitions this time around, which means Flagg will face different quality opponents more consistently and will be asked to close games where the other side has been explicitly game-planning against him. That is the jump from Rookie of the Year to all-time conversation, and nobody navigates it without difficulty.
Flagg’s introduction to the international game has already started. His first NBA games overseas will be played in Macao this fall when Dallas opens the NBA China Games against Houston — a stage that moves him from domestic prospect to a global property the league has been building toward for years. Kidd said in his recent interview that what Flagg is doing “might look easy” from the outside. “But what he’s doing when you talk about those names — it’s not very easy. With the injuries we’ve had, to do what he’s doing is very impressive.”
The injuries cut Dallas’s margin for error all of last season. A healthier supporting cast changes the picture for year two. Whether it changes it enough to put the franchise in genuine championship contention — rather than just playoff-eligible — is the question Kidd’s caveat is really pointing at. Sports Illustrated reported the details of Kidd’s consultation with James and Curry, and both of those players know what young greatness looks like because both were it. Their validation is worth something.
LeBron James was 21 in his third NBA season, and the Cleveland Cavaliers around him were still not good enough. The window for the comparison to hold runs further out than one year, or even two. What Kidd is saying, with the championship qualifier attached, is that the comparison is live — not that it has been earned. Flagg still has to play his way into it. The question nobody in Dallas yet has an answer for is how long that takes, and whether the team around him can make the timing irrelevant.
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