When you have a farm system as deep as the St. Louis Cardinals organization does, the need to look for free agents to fill holes is minimal.
The Cardinals are set at first base, second base, third base, possibly all the outfield and catcher. They also have a very solid rotation for 2014 as well, pending everyone is healthy.
But that being said, the Cardinals may need to fill a few spots on the roster via free agency, although at the moment, there is not a glaring need at any position.
Here is a brief list of potential free-agent targets for the 2014 season.