San Antonio Spurs head coach Gregg Popovich is not just the best in team history, but he is in the debate as the greatest coach in the NBA’s illustrious history. However, Father Time comes for us all, and he is currently in deep discussions with the Spurs legend.

In November, the 76-year-old suffered a mild stroke and has not been on the sidelines since. Earlier this week, ESPN NBA insider Shams Charania revealed that the coach is not expected to return this season, and his future as a coach is uncertain. All the signs are there for Popovich to finally bring his hall-of-fame career to a close this year.

Assuming that eventuality comes to pass later this year, let’s take a look at five coaches the San Antonio Spurs could take a hard look at to replace the NBA legend.

Mike Brown is a proven head coach (454-304 record) with a lot of experience. After two strong seasons — including winning Coach of the Year — in Sacramento, he was surprisingly fired earlier this season. While he may not excite Spurs fans because of his failed tenures in Cleveland and Sacramento, as a former Popovich assistant the legendary head coach could push for him to be his successor.

There have been rumblings for years that Jeff Van Gundy could return to the sideline as a head coach. After being shockingly ousted from his announcer gig at ESPN, the Knicks great has dipped his toe back into the sport. First as an advisor for the Celtics and now as an assistant for the Clippers. The ability to coach Victor Wembanyama, De’Aaron Fox, and possibly Cooper Flag — if the Spurs get enough ping-pong balls in the draft — would certainly appeal to Van Gundy.