Greg Fiume/Getty ImagesChad Billingsley's ERA rose to 4.30 today.So, which logic do we follow?Is it the logic that Chad Billingsley is afraid to trust his stuff? That his mechanics have gone awry?  Or that might be hurt?Billingsley was chased with one out in the third inning of today's lidlifter against Washington, after he gave up the Dodgers' early 4-0 lead. Billingsley surrendered four runs on a single, three doubles and a home run in the third, capping an ugly outing in which he allowed eight of his 15 batters to reach base.Despite concern rising about his performance on this site two weeks ago, Billingsley actually had a halfway decent August, with a 3.77 ERA while averaging more than six innings per start. But his strikeouts per nine innings fell to 5.5 while his walks w