Eric Seidman looks at how dominant Chris Carpenter has been in his four starts this season, comparing him to Zack Greinke. I mostly link to it because this made my jaw drop:

In four starts, Carpenter has added more wins to the Cardinals than their entire bullpen. If you’re skeptical, the combo of Motte, Franklin, Thompson, Miller, Reyes, Kinney and Boggs (as a reliever) has combined for 0.5 wins above replacement. This speaks more to the ineptitude of their bullpen but serves to show that a good starter in just four starts can be twice as effective, if not more, than a reliever available all season.

Yup.