Chris Carpenter was BAbip'd in the fourth inning, but he didn't exactly pitch very well, either—it was just an inning of sloppy and underwhelming baseball that led to several runs but could also have led to no runs at all. He's almost unavoidably a member of the rotation now that Jaime Garcia is gone, but after two games his command just doesn't look all the way there; I wouldn't exactly say no to Chris Carpenter, either, but this might not have ben the right move. (And we're going to hear a lot more about Shelby Miller now.)
At least he's hitting. If Allen Craig, Yadier Molina, and David Freese don't hit, the Cardinals are reliant on Pete Kozma, Daniel Descalso, and Chris Carpenter to a degree that is less advisable than you might extrapolate from the postseason so far.
In case you missed it: Here's SB Nation St. Louis's post about the Matt Holliday slide, complete with animated GIF.