11:04pm: SI.com's Jon Heyman says A.J. Hinch will move out of the front office to take over as the new D'Backs manager. He'll be introduced Friday. During his playing career, Hinch was a catcher for the A's, Royals, Tigers, and Phillies.
8:05pm: According to John Gambadoro of 620 KTAR, Diamondbacks manager Bob Melvin will be replaced before Friday's game. The writing had been on the wall for a few days now. At 12-17, the D'Backs are already 9 games back of the Dodgers in the NL West. SI.com's Jon Heyman says the D'Backs are staying in house, but it won't be Chip Hale, Kirk Gibson, or Brett Butler. He believes the new manager will come from the team's front office.