To be fair, Bush has had some poor defense behind him in a couple of starts. By no stretch of the imagination am I saying he is pitching "well", but I don't think he's done as poorly as some may think. As you said, he's been consistently mediocre over his career, which to me is fine when you're 4th/5th starter. As long as he doesn't continue to walk 4 or 5 guys a game he should be fine as a part of the rotation. I'll agree that Parra should probably be sent down, though mostly based on the fact it's easier to limit his innings. Obviously he, like the others, haven't been pitching well, but it's kind of silly to make a numbers decision based off 3 starts this year.