I don't see how it makes sense to say that the pitcher bears no responsibility for allowing home runs and other hits in an inning just because an error occurred on a previous play. Was Bush not trying to get those guys out and did he not fail to do so? Mainly because he had to get 4 outs in an inning. Yeah, a better pitcher will more often get that 4th out. But as you add outs to an inning, the average amount of runs allowed is going to increase exponentially not proportionally. Is there a way to tell how many errors occurred while a certain pitcher was pitching? If you are going to look at just RA, you should at least add those errors occurred as 1/3 IP (but even that isn't perfect, as I mentioned the probability of runs scored goes up exponentially). In comparing Bush and Narveson, the biggest differences (besides ERA) appear to be HR, strikeouts, and opponents SLG...all of which favor Narveson. Considering all that, I'd say Narveson appears to have been a more successful pitcher than Bush so far this season. Don't confuse my arguments as defending Bush. I'm countering the argument itself, not defending Bush. But I do think Bush gets railed on far too much while Narveson gets none (or very limited). The main difference is that Bush had success as a SP, Narveson hasn't. Neither is having success right now. Personally, I hope they both get replaced.