According to Joe Strauss of the St. Louis Post-Dispatch, the Cardinals have released Adam Kennedy. They'll still be responsible for his $4MM salary. The move was "apparently made at the strong urging of manager Tony La Russa," who didn't want Kennedy to be his starting second baseman.
Skip Schumaker has been working out at second base, and could play there if the Cards don't add anyone to replace Kennedy. Strauss mentions Brendan Ryan and a few others as possible competitors for the job.
This is good news for Orlando Hudson, who has another possible bidder for his services.