The experiment that was Pedro Feliz is now over as the Astros have traded him - not Blum - to St. Louis for RHP David Carpenter.
Carpenter is a 25-year old reliever, drafted in the 12th Round by the Cardinals in 2006. He's 5-3 in High-A Palm Beach of the Florida State League, where has posted a 2.36 ERA and a 1.13 WHIP in 49 games.
You're probably thinking that this isn't much of a return, but if Pedro Feliz is the missing piece as the Cardinals try to catch the Reds, then the Cardinals are playing with the wrong puzzle.