Gregg Popovich, Phil Jackson or Red Auerbach: who's the greatest NBA coach of all-time? I UNDISPUTED
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San Antonio Spurs head coach Gregg Popovich is one win away from becoming the NBA's all-time leader in coaching wins. Popovich has coached the Spurs since 1996 and has 1,335 wins along with 5 NBA Championships. Shannon Sharpe decides if Chicago Bulls, Los Angeles Lakers coach Phil Jackson, former Boston Celtics coach Red Auerbach or Greg Popovich is the greatest coach of all-time.