Watch: How did the Celtics get here? A story on Boston's rebuild

Watch this short video on how the Celtics turned things around so quickly, going from the Brooklyn Nets trade to once again becoming contenders in the NBA as Danny Ainge made over 70 moves over past four years, including some big free agent signings (Al Horford, Gordon Hayward) and some big trades (that eventually lead to Kyrie Irving landing in Boston) along the way. This is how this year's team and its core was built!

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