The Arizona Diamondbacks' 2010 season, the franchise's 13th season in Major League Baseball, included the team's attempt to make the playoffs for the first time since 2007. On July 1, 2010, the Arizona Diamondbacks fired Manager A. J. Hinch following a 31–48 start to the 2010 season and promoted Kirk Gibson who had served as the bench coach of the team since the 2007 season. Along with the dismissal of Hinch came the firing of General Manager Josh Byrnes.