According to Bernie Miklasz at the St. Louis Post-Dispatch (via Twitter), Cardinals manager Tony La Russa indicated that he would be interested in adding the recently dismissed veterans John Smoltz and Justin Speier. Both would be candidates to strengthen the depleted right side of the Cards' bullpen.
Against righties this season, Smoltz put up a 21/2 K/BB ratio while limiting them to a .232 batting clip. Speier has a 20/5 K/BB against them and has kept them to only a .239 average. So despite each having early difficulties, it looks like they each still could be of use to a team like the Cardinals. It's also notable that Tony La Russa had been clamoring to acquire Matt Holliday last year until the Cards finally pulled the trigger to grab him -- La Russa has a history of getting his man.