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David Blatt is out of a job.

The Cleveland Cavaliers fired their head coach Friday after one-plus seasons, sources told Yahoo Sports' Adrian Wojnarowski. Assistant coach Tyronn Lue will take over for Blatt, and the Cavs already have signed him to a three-year deal, according to Wojnarowski.

In Blatt's first season at the helm, the Cavaliers made it to the NBA Finals, and they were off to a successful 30-11 start in the 2015-16 campaign before he was fired.

However, sources told ESPN's Chris Broussard that some players "felt like Blatt was in over his head as coach," and Yahoo Sports also reported that Cavs superstar LeBron James and his agent "have been strong advocates" for Lue since last season.

The decision ultimately was made by Cavaliers general manager David Griffin, though, and James was "not consulted" about the decision, sources told ESPN.

Thumbnail photo via David Richard/USA TODAY Sports Images