BOSTON, MA – DECEMBER 11: Head coach, Doc Rivers, of the Los Angeles Clippers smiles before the game against the Boston Celtics on December 11, 2013 at the TD Garden in Boston, Massachusetts. 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. Mandatory Copyright Notice: Copyright 2013 NBAE (Photo by Brian Babineau/NBAE via Getty Images)