BOSTON, MA – MARCH 18: Head Coach Doc Rivers of the Boston Celtics reacts in the fourth quarter during the final minutes of a 103-105 loss to the Miami Heat on March 18, 2013 at theTD Garden in Boston, Massachusetts. The Heat kept their winning streak going to 24 games in a row, which is the second longest in NBA history. 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 Jim Rogash/Getty Images)