I'm okay with using your best in the 9th at home, just to ensure that he gets in the game and you are doing you best to extend the game. However, when on the road and pitching the bottom of the 9th, you already know that best case scenario you'll have to pitch the bottom of the 10th as well, so I'd use somebody else to start the bottom of the 9th and bring on DWill if guys get on base early in the inning, but hopefully save him for the 10th.