The St. Louis Cardinals acquired Rafael Furcal from the Dodgers for an outfield prospect:

Shortstop Rafael Furcal accepted a trade to St. Louis and was dealt to the Cardinals for outfield prospect Alex Castellanos.

The main worry with Fucal is health. In three of the last four seasons, he missed significant playing time with injuries. If healthy, he should be an upgrade over Ryan Theriot.

It took Castellanos a long time to reach AA, spending his first season there this season at seasonal age 24. That tells me he’s not much of a prospect. It seems the Cardinals did not give up much for a potential improvement to their team.