I am going to keep saying it, the Celtics should have initiated a full rebuild last offseason.
The Dallas Mavericks trade
Nico Harrison wanted to contend right away, and he had already committed to Irving & Davis.
Starting in 2027, the Dallas Mavericks do not have control of their first round pick until 2031. If the Celtics had offered Tatum for Flagg, Nico would have jumped at that offer. The trade would have given Nico more time as Mavs GM.
Tatum, Davis, Irving, Lively II, 2026 lottery pick.
That is a contending core for the Dallas Mavericks.
Now after sacking Nico Harrison, salary dumping Davis & Masai Ujiri coming in, the Mavs are in full rebuild mode.
The San Antonio Spurs Trade
The Spurs have always been enamoured with Jaylen Brown. He is the prototypical Spurs Guy. They had already traded for Fox, who is in his prime. There is no way the Spurs would have turned down a Brown for Dylan Harper trade.
Fox
Vassell
Brown
Castle
Wembanyama
Johnson, Champagnie, Bryant, Kornet
Now after a season, Harper has vastly exceeded expectations and seems to have beaten out Fox.