Impressed by the way Brad Stevens handled the Boston Celtics' wave of injuries and led the team to the No. 2 seed in the East? Apparently, his peers weren't.

On Wednesday, the NBA Coaches Association announced that they had awarded their Coach of the Year award -- as voted by the league's 30 head coaches -- to Dwayne Casey of the Toronto Raptors.

The Coaches' Association award was introduced last year and is separate from the Red Auerbach Trophy for Coach of the Year, which is decided by a media vote.

Casey winning the award in itself isn't a shock. The Raptors exceeded expectations en route to winning the No. 1 seed in the East. What is a surprise, though, is that Stevens reportedly didn't receive a single vote.

According to the association's announcement, eight coaches received votes. Stevens was not among the other seven, which were:

Brett Brown, Philadelphia 76ers

Mike D'Antoni, Houston Rockets

Nate McMillan, Indiana Pacers

Gregg Popovich, San Antonio Spurs

Quin Snyder, Utah Jazz

Terry Stotts, Portland Trail Blazers

Doc Rivers, Los Angeles Clippers

Considering the Celtics' success this season after losing Gordon Hayward in the first game of the season and Kyrie Irving down the stretch, the 2017-2018 team has been considered one of Stevens' best coaching performances.

The lack of votes is even more apparent in the playoffs, as Stevens' Celtics have a commanding 3-1 series lead on the 76ers while Casey's Raptors were swept by the Cleveland Cavaliers.