Billy Donovan set to join San Antonio Spurs as lead assistant, reports say

San Antonio is reportedly preparing a major change on the bench by bringing in Billy Donovan as its lead assistant coach. Multiple outlets reported the agreement on the eve of the offseason’s next phase, positioning Donovan as a key operator for a Spurs staff that is trying to translate postseason progress into a title-level push.

Donovan, a longtime head coach with a history of building winners, most recently coached at the pro level as the Chicago Bulls’ head coach after years running the Oklahoma City Thunder. ESPN and other reporters described the move as Donovan agreeing to become San Antonio’s lead assistant with head coach Mitch Johnson, effectively adding a veteran voice and play-management experience directly under Johnson’s leadership.

The context for the Spurs matters. According to reporting from The Oklahoman, San Antonio reached the 2026 NBA Finals and lost in five games to the New York Knicks. Coming so close to the Larry O’Brien Trophy tends to accelerate front-office and coaching adjustments, especially around shot creation, late-game decision-making, and the staff’s ability to tailor schemes to playoff opponents.

For Donovan, this is a continuation of his coaching career rather than a return to the collegiate ranks. His prior resume includes back-to-back national championships with the Florida Gators in 2006 and 2007, then a long run in the NBA with Oklahoma City that included five straight playoff appearances and a Western Conference finals push in the 2016 postseason. After that, he led the Bulls for six seasons, including a playoff appearance in 2021-22.

On San Antonio’s side, Johnson is still in the early stretch of his head-coaching tenure. Reporting from The Oklahoman characterized Johnson as having completed his first full season as Spurs head coach, and described his youth and relative inexperience compared to the NBA’s established bench bosses. Adding a coach of Donovan’s stature to the lead-assistant role can change how the staff prepares daily, especially in the details that matter most in playoff series: scouting emphasis, adjustments, and the division of responsibilities between assistants and the head coach.

Nothing in the reporting provided confirmation of the exact internal responsibilities Donovan will hold beyond the lead assistant designation. The practical impact is still clear, though, because a lead assistant typically shapes how the coaching staff runs film sessions, helps coordinate in-game counters, and manages specific units or tactical wrinkles with the head coach.

What to watch next is whether San Antonio uses this addition to reinforce the rest of its bench structure. Donovan’s presence can also influence how the Spurs develop young players and how they prioritize roster fit around their playoff-tested style. In the immediate term, the move indicates that San Antonio views the offseason as a chance to close the gap, not simply maintain progress from the 2026 postseason.