"We look forward to watching him progress, you just never know," Matheny said. "Obviously, we'd love to have him be an active part, but we put a lot of responsibility on our guys even though they're not on the active roster. You've seen Chris Carpenter always involved. You're seeing Rafael Furcal the same way, guys that are still trying to contribute. And Allen Craig is doing the same thing.
"It's just difficult for a guy that's not used to being in that situation. But once again, he's continuing to get better, so we don't know what he'll look like going forward. But it looks like our roster is going to be the same."
The Cardinals carried 12 pitchers and 13 position players on the 25-man roster in the NLDS, a group that included 10 rookies.
Chad Thornburg is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.