What happened: Boston moved Brown this offseason, ending his 10-season run with the franchise.
Why it matters: The judgment will hinge on whether the Celtics' new structure sustains contention in 2026-27.
By the numbers: Brown averaged 28.7 points, 6.9 rebounds and 5.1 assists per game in 2025-26.
What to watch: Boston's opening months will provide the first on-court test of that outlook.