The Boston Celtics have hired ex-Golden State Warriors assistant coach Darren Erman as director of NBA scouting, Celtics general manager Danny Ainge told Yahoo Sports on Tuesday.

Erman had been the architect of a top-three NBA defense as an assistant coach with the Golden State Warriors until his termination three weeks ago.

In the aftermath of his departure from the Warriors, which league sources say stemmed from a single taped conversation of Warriors coaches who had been working to undermine his game preparation and relationships with players, Erman accepted the job to return to Boston, where his NBA coaching career began in 2007.

"Darren worked with us for four years and he was one of the hardest working, most competent and intelligent members of our organization," Ainge told Yahoo Sports. "We welcome him back."

Before agreeing to rejoin the Celtics, Erman had job opportunities that included rejoining Doc Rivers with the Los Angeles Clippers, league sources said.

Erman had worked as a coaching associate under Rivers with the Celtics from 2007-11. Erman also had worked closely with past top assistants Tom Thibodeau and Lawrence Frank on Rivers' staffs.

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