Pictures: Stevens starts work as new Celtics coach

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The Celtics introduced their new head coach, Brad Stevens, at their Waltham practice facility on Friday.



Waltham-07/05/13- The Celtics introduced their new head coach Brad Stevens at their Waltham practice facility. BostonGlobe staff photo by John Tlumacki(sports)


The Celtics introduced their new head coach, Brad Stevens, at their Waltham practice facility on Friday.


John Tlumacki/Globe Staff


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Waltham-07/05/13- The Celtics introduced their new head coach Brad Stevens at their Waltham practice facility. BostonGlobe staff photo by John Tlumacki(sports)

A large contingent of media documented the event.


John Tlumacki/Globe Staff


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Waltham-07/05/13- The Celtics introduced their new head coach Brad Stevens at their Waltham practice facility. He chats with GM Danny Ainge(l).BostonGlobe staff photo by John Tlumacki(sports)

Celtics president Danny Ainge said Brad Stevens was his first choice to be the new coach of the Celtics.


John Tlumacki/Globe Staff


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Son Brady, left, and wife Tracy Wilhelmy Stevens, right, watch from a balcony overlooking a news conference where new Boston Celtics head coach Brad Stevens was introduced Friday, July 5, 2013, at the NBA basketball team's training facility in Waltham, Mass. Stevens twice led the Butler Bulldogs to the NCAA title game. He replaces Doc Rivers, who was traded to the Los Angeles Clippers. (AP Photo/Josh Reynolds)

Brad Stevens' son, Brady, and his wife, Tracy Wilhelmy Stevens, watched from a balcony overlooking the news conference.


Josh Reynolds


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New Boston Celtics head coach Brad Stevens speaks during a news conference where he was introduced Friday, July 5, 2013, at the NBA basketball team's training facility in Waltham, Mass. Stevens twice led the Butler Bulldogs to the NCAA title game. He replaces Doc Rivers, who was traded to the Los Angeles Clippers. (AP Photo/Josh Reynolds)

Brad Stevens replaces Doc Rivers, who left to become coach of the Los Angeles Clippers.


Josh Reynolds


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New Boston Celtics head coach Brad Stevens center, sits with, from left, Celtics President Rich Gotham, co-owner Stephen Pagliuca General Manager Danny Ainge, and co-owner and CEO Wyc Grousbeck, right, during a news conference Friday, July 5, 2013, at the NBA Basketball team's training facility in Waltham, Mass. Stevens, who twice led the Butler Bulldogs to the NCAA title game, replaces Doc Rivers, who was traded to the Los Angeles Clippers. (AP Photo/Josh Reynolds)

Brad Stevens previously was the head coach at Butler University, which he led to the national championship game in both 2010 and 2011.


Josh Reynolds


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New Boston Celtics head coach Brad Stevens stands on the Celtics emblem at half-court following a news conference where he was introduced Friday, July 5, 2013, at the NBA basketball team's training facility in Waltham, Mass. Stevens twice led the Butler Bulldogs to the NCAA title game. He replaces Doc Rivers, who was traded to the Los Angeles Clippers. (AP Photo/Josh Reynolds)

"I won’t be right in every decision. I’m going to make a lot of mistakes. But we will bust it to make sure we won’t make that same mistake again," Brad Stevens said.


Josh Reynolds


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New Boston Celtics head coach Brad Stevens speaks with his wife, Tracy Wilhelmy Stevens as he leaves a news conference where he was introduced Friday, July 5, 2013, at the NBA basketball team's training facility in Waltham, Mass. Stevens twice led the Butler Bulldogs to the NCAA title game. He replaces Doc Rivers, who was traded to the Los Angeles Clippers. (AP Photo/Josh Reynolds)

Tracy Wilhelmy Stevens is also Brad Stevens' attorney and agent.


Josh Reynolds


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