The Jaylen Brown trade is a watershed moment for NBA analytics, and nothing will be the same after it

MILWAUKEE, WISCONSIN - APRIL 03: Jaylen Brown #7 of the Boston Celtics warms up before a game against the Milwaukee Bucks at Fiserv Forum on April 03, 2026 in Milwaukee, Wisconsin. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Patrick McDermott/Getty Images) | Getty Images The Boston Celtics’ decision to trade Jaylen Brown to the Philadel