Oswalt Lit Up

First of all, I don't know why the Astros traded Roy Oswalt. He's an ace, under contract for two more years and the kind of pitcher every team covets.
The Astros are having a crappy year. So what. Build around a pitcher like Oswalt, don't just give him up.
The Phillies probably wished the Astros would have waited a few days before trading Oswalt.
The Nationals pounded their way to an 8-1 win over Philly. Oswalt gave up 5 runs (4 earned) in 6-innings.