Perhaps you already saw this, but the Astros released "closer" (snicker) Francisco Cordero.
The 37-year old pitcher was 0-3 for Houston, with a 19.80 ERA - having allowed 13H/11ER, 5K:4BB, 2HR, HBP in 5IP. In his mercifully brief stint with Houston, Cordero faced 32 batters, and got 15 of them out.
That said, if Musgrove and Wojciechowski pan out, it will have been totally worth it.