What happened: George and Conley enter Boston after a summer roster shakeup that moved Jaylen Brown out and added two veteran starters to the mix for 2026-27. Neither has won a title, giving the Celtics a pair of established newcomers with immediate championship stakes in their first season together.

Why it matters: That urgency matters for a team recalibrating around Jayson Tatum after the Brown deal and asking its new core pieces to shorten the adjustment period. George has already said the fit with Tatum should come naturally, while Conley adds another veteran voice as roles settle into camp.

What to watch: Training camp and preseason will show how Boston balances George and Conley alongside Tatum in a roster remade by the Brown trade. The early read will be how quickly that veteran pair shapes the Celtics' rotation heading into opening night.