Sean O’Malley – Boston Celtics

For three decades, Sean O’Malley was the power broker behind the curtain of the NBA. A legendary agent, he represented Hall of Famers, negotiated some of the biggest contracts in league history, and built a Rolodex of contacts that stretched from locker rooms to statehouses. But when he finally crossed over into ownership, he brought that same strategic overseer’s mindset to Boston.

Born in Southie, O’Malley’s rise was fueled by grit, charisma, and a talent for dealmaking that often left GMs and owners speechless. He sees basketball through the lens of legacy — the Celtics aren’t just a franchise, they’re a dynasty that demands constant renewal.

His patient but firm leadership style allows coaches and players room to breathe, but everyone knows he’s measuring them against the banners already hanging in the rafters. Sean has no interest in being a caretaker governor. He’s here to secure Banner 18 and beyond.

His favorite line? “We’re not just building a team—we’re building a legacy.”