While the St. Louis Cardinals are not expected to be major players in free agency this year, they are going to be active in looking for starting pitchers to add to their rotation, and they may even take a bigger swing than you might be thinking.
While I find it very unlikely that they'd pursue one of the biggest name starters like Dylan Cease, Framber Valdez, and the likes of those arms, reports do indicate that the Cardinals are letting free agents know they are interested, and some of those options will depend on how much money they can move from their books.