The AP notes that the Chicago Cubs aren't the only NL Central team with starting rotation question marks heading into the 2007 season:

The St. Louis Cardinals have tasted postseason success, and they likely will have to pay for it now.

St. Louis general manager Walt Jocketty's biggest challenge this offseason will be keeping the World Series champions on top while facing budget constraints. Some of his biggest decisions will deal with his starting rotation, beginning with postseason standouts Jeff Weaver and Jeff Suppan - two free agents who could be looking for more money after strong playoff runs.

Of course, even if Weaver and Suppan leave, along with Mark Mulder, the Cardinals still have Chris Carpenter, Anthony Reyes, and Adam Wainwright, who should be moved to the rotation next season.