Gregg Popovich coach 95 Massive coaching tree: Budenholzer (champion), Messina, Udoka, Brett Brown, Borrego, Hardy, Taylor Jenkins. Most prolific tree in NBA. Pat Riley coach 82 Coaching tree includes Erik Spoelstra, Jeff Van Gundy, Stan Van Gundy, Brian Hill. Significant tree. Phil Jackson coach 72 Coaching tree includes Jim Cleamons, Kurt Rambis, Brian Shaw. Less prolific tree than Pop or Riley. 4 Red Holzman coach 70 Influenced Willis Reed as coach, Phil Jackson learned under Holzman system philosophy 5 Chuck Daly coach 65 Coaching tree includes Brian Hill, Brendan Malone. Moderate but influential tree for the era. 6 Jack Ramsay coach 62 Influenced coaching philosophy broadly through broadcasting and clinics; modest direct tree 7 Don Nelson coach 60 Coaching tree includes Mike Montgomery, Keith Smart. Moderate tree but influenced many coaches philosophically. 7 Larry Brown coach 60 Tree includes John Kuester, Michael Curry. Less prolific tree due to constant team changes. 9 Jerry Sloan coach 55 Smaller coaching tree. Jeff Hornacek, Tyrone Corbin became head coaches. Moderate influence on future coaches. 9 Tom Thibodeau coach 55 Several assistants became HCs but none with sustained success; modest tree 9 Rick Pitino coach 55 Extensive college coaching tree; Billy Donovan, Tubby Smith from his tree 9 Steve Kerr coach 55 Relatively young coaching tree. Mike Brown had success. Kenny Atkinson influenced. Tree still growing. 13 Tom Izzo coach 52 Extensive college tree; Tom Crean, Stan Heath, and others; influenced NBA coaches indirectly 14 Doc Rivers coach 50 Relatively small coaching tree. Tyronn Lue assisted under Rivers and won a championship. Sam Cassell as assistant. 15 Erik Spoelstra coach 45 Relatively few head coaches from his tree so far. Dan Craig, Chris Quinn as assistants. Tree still developing. 16 Stan Van Gundy coach 40 Limited coaching tree; brother Jeff was already established independently 17 Sergio Scariolo coach 35 Significant international coaching influence; several European coaches from his tree 18 Mike Montgomery coach 30 College coaching tree is notable; Sean Miller and others from his Stanford program 18 Quinn Snyder coach 30 Limited coaching tree so far; relatively younger coaching career arc 20 Monty Williams coach 25 Too early in career for significant coaching tree; no notable HC branches yet 20 Brett Brown coach 25 Limited coaching tree; came from Pop tree himself as longtime Spurs assistant 20 Terry Stotts coach 25 Limited coaching tree; no notable HC branches from his staff 23 Kenny Atkinson coach 20 Still early in HC career; served as assistant under Budenholzer before and after 24 Darvin Ham coach 15 No coaching tree to speak of; very short HC tenure 24 Ime Udoka coach 15 Too early for coaching tree; career disrupted by suspension