5 active NBA head coaches with the best winning percentage heading into the 2021-22 NBA season

#3 - Steve Nash (66.7%)

Brooklyn Nets head coach Steve Nash has a 66.7% winning percentage

The Brooklyn Nets' Steve Nash is the only coach on this list with a single season as an NBA head coach under his belt. In his lone NBA season at the helm, the Nets won 48 games and lost just 24 (66.7% winning percentage).

The 47-year-old has managed to find the ideal role for Bruce Brown as a roll man, which is an impressive feat. He has also proven to be a good head coach rather than a product of a supremely talented roster, comprising Kevin Durant, James Harden, and Kyrie Irving.

Irving not playing this NBA season seems like a growing possibility. His absence would give fans a better understanding of Nash as an NBA head coach, even if Durant and Harden remain available.

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#2 - Gregg Popovich (66.7%)

San Antonio Spurs head coach Gregg Popovich has a 66.7% winning percentage

Not many would take issue with labeling Gregg Popovich the greatest NBA head coach of all time. In his 25 seasons as head coach, the San Antonio Spurs have appeared in the postseason on 23 occasions.

Popovich's accolades include five NBA championships, three Coach of the Year awards, and two Olympic gold medals as part of the Team USA coaching staff.

Note the discrepancy in sample sizes for Popovich compared to his peers also mentioned in this list. 13 seasons with a winning percentage of at least 70%, along with the aforementioned awards, speak for themselves.

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#1 - Steve Kerr (68.7%)

Golden State Warriors head coach Steve Kerr has a 68.7% winning percentage

Steve Kerr is a disciple of Gregg Popovich, and he clearly adopted the latter's winning ways.

Kerr has had the benefit of playing with undeniably talented players like Stephen Curry, Klay Thompson, Draymond Green and Kevin Durant throughout his seven seasons with the Golden State Warriors. However, let's not downplay his coaching ability.

His league-leading winning percentage does not account for Luke Walton implementing the 2015-16 scheme that Kerr had already put in place to 39 wins and four losses.

Steve Kerr and the Warriors appeared in the NBA Finals for five straight seasons and secured the Larry O'Brien trophy on three of those occasions.

Since then, Kerr has faced tough conditions. The 56-yea-old has had to deal with injuries to his primary players. He also had to figure out how to acclimate developmental minutes for Golden State's recently drafted youth talent. His team's 54-83 record from 2019-21 is representative of those hurdles.

It will be interesting to see how Kerr bounces back with added depth and some returning foundational pieces in the 2021-22 NBA season.