It's pretty tough to say he sucks when he was so solid last year, though, and his peripherals are still pretty solid this year. I think it's a combination of the bad luck that Ennder mentioned (which you can see in his hit rate) and a dead arm. Vargas is the worst pitcher on the staff, and he's been pretty lucky. Bush is more like the third or fourth best on the staff, just that things aren't really working out for him this season. The Brewers have a pretty healthy lead in what is the worst division in baseball, so they can likely afford to play this out for a while yet. I guess I'm fine with whatever they choose to do on this one, because I think Bush can be a solid reliever, too. But he's already been a decent starter, too.