NBA: Ranking all 30 head coaches ahead of the 2017-18 season

MEMPHIS, TN - APRIL 27: Head coach David Fizdale of the Memphis Grizzlies speaks to the media prior to Game Six the Western Conference Quarterfinals game against the San Antonio Spurs during the 2017 NBA Playoffs at FedExForum on April 27, 2017 in Memphis, Tennessee. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Frederick Breedon/Getty Images)
MEMPHIS, TN - APRIL 27: Head coach David Fizdale of the Memphis Grizzlies speaks to the media prior to Game Six the Western Conference Quarterfinals game against the San Antonio Spurs during the 2017 NBA Playoffs at FedExForum on April 27, 2017 in Memphis, Tennessee. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Frederick Breedon/Getty Images)
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CLEVELAND, OH – JANUARY 29: Head coach Billy Donovan of the Oklahoma City Thunder shouts out instructions from the bench while playing the Cleveland Cavaliers at Quicken Loans Arena on January 29, 2017 in Cleveland, Ohio. Cleveland won the game 107-91. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Gregory Shamus/Getty Images)
CLEVELAND, OH – JANUARY 29: Head coach Billy Donovan of the Oklahoma City Thunder shouts out instructions from the bench while playing the Cleveland Cavaliers at Quicken Loans Arena on January 29, 2017 in Cleveland, Ohio. Cleveland won the game 107-91. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Gregory Shamus/Getty Images)

17. Billy Donovan, Oklahoma City Thunder

To much surprise of NBA fans everywhere, Billy Donovan has had great success in his jump to the league. He inherited Kevin Durant and Russell Westbrook in his first year at the helm in OKC, leading them to a 55 win season and one win away from beating the juggernaut Golden State Warriors in the Western Conference Finals.

The following year, his roster looked a tad different without KD, but that didn’t stop Billy from finding a way to make it to the playoffs again. The Thunder won 47 games last season and a big reason for that was Donovan giving the MVP the keys to the car.

Donovan relied more heavily on Russell Westbrook than any player in the league last year (41.7 usage percentage). In 2018, Billy will find yet another way to run his team through the MVP and a new stud in town; PG13.