There was similar angst over dealing Rasmus and Ludwick. This FO has a pretty good track record for knowing when to cut bait. (2/2)
So if Cards don't score a run here, they have a total cipher on the mound and their 3 and 4 hitters out of the game.
Playing for one run so as to leave your reliever in a game you trail by 3. This may not be optimal strategy on Oct. 11.