Cozart is the lead off hitter, he had the day off. There is no backup CF with Stubbs out and Valdez at SS. Heisey had to play. And the team doesn't have another lead off hitter.
Chapman is the closer until a contrary decision is made. Reasonable decision to bring him in. He messed up.
Bunting with Harris I disagree with, but it's one way to play it. Again, reasonable decision.