It's hard to fault Melvin for Parra. At some point you have to take a chance on a younger guy and see if he can do the job. The lack of depth is a concern given the prevalence of injury and the chance that Parra would fail, but then I guess you can say that almost every team has depth issues with respect to starting pitching. Parra wasn't a world beater last year, but he certainly didn't fail like he has this season, either.