Coach of the month in November, out of a job by New Year’s.

The Brooklyn Nets have elevated expectations this season, and a .500 record wasn’t good enough. Coach Avery Johnson was fired Thursday, his team having lost 10 of 13 games after a strong start to its first season in Brooklyn.

‘‘We don’t have the same fire now than we did when we were 11-4,’’ general manager Billy King said at a news conference in East Rutherford, N.J. ‘‘I tried to talk to Avery about it and we just can’t figure it out. The same pattern kept on happening.’’

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Assistant P.J. Carlesimo will coach the Nets on an interim basis, starting Friday night with a home game against Charlotte. King said the Nets might reach out to other candidates, but for now the job was Carlesimo’s.

Johnson was in the final year of a three-year, $12 million contract.

Thunder 111, Mavericks 105 — Kevin Durant scored 40 points and Russell Westbrook added 8 of his 16 points in overtime to help Oklahoma City beat Dallas for its 11th straight win at home.

Serge Ibaka scored 19 points and matched his season-high with 17 rebounds as OKC charged back from 10 points down in the final 7:17 of regulation and found a way to win after losing back-to-back games for the first time this season.

Darren Collison scored a season-best 32 points for Dallas. Dirk Nowitzki scored 9 points in his second game back after offseason knee surgery, showing some rust down the stretch.