Jim O'Brien Named Dallas Mavericks' Lead Assistant Coach, According To Report

PHOENIX - DECEMBER 03: (FILE) Head coach Jim O'Brien of the Indiana Pacers directs his team during the NBA game against the Phoenix Suns at US Airways Center on December 3 2010 in Phoenix Arizona. According to reports on January 30 2011 the 17-27 Pacers fired O'Brien in the middle of his fourth season as head coach. 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 Christian Petersen/Getty Images)

The Dallas Mavericks have brought on Jim O'Brien as head coach Rick Carlisle's lead assistant.

The Dallas Mavericks have reached an agreement to bring Jim O'Brien onto head coach Rick Carlisle's staff, according to Marc Stein of ESPN.

O'Brien will replace former lead assistant Terry Stotts on the Mavs' bench after Stotts took the head coaching position with the Portland Trail Blazers. Dallas was also interested in Jay Triano and Steve Clifford before they accepted offers elsewhere, according to ESPN.

In his last head coaching gig, it was O'Brien who replaced Carlisle after he was fired from the Indiana Pacers following the 2006-07 season. O'Brien was fired by Larry Bird in the middle of the 2010-11 season after a poor 17-27 start. He has also coached the Boston Celtics and Philadelphia 76ers.

The 60-year-old brings 630 games of head coaching experience to the Mavericks. O'Brien went 303-327 in those games.

For the Mavericks, this continues a long line of coaching turnover. Carlisle's former lead assistant, Dwane Casey, left in 2011 for the Toronto Raptors' head position before Stotts left for Portland this year.

Check out Mavs Moneyball for more on the Dallas Mavericks or take a peek at SB Nation's NBA hub.

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