Just a curiousity as Livingston goes and throws another tolerable game... Can a guy be successful as a 5th starter by simply not giving up very many walks or homers? Sure, he's rarely throw a gem, but he's also much less likely to have those bomb, no chance at all, sorts of starts. Where do those thresholds lie?
If a guy manages to keep his HR/9 under 1, and his BB/9 under 2, you're basically looking at a game of somewhat standard BABIP. He'll end up with an ERA around 5, but won't often kill you and will have some nice starts when balls find gloves. Not saying we shouldn't continue to look for better alternatives, but it seems that simply keeping the ball in the yard and not giving away free passes can carry a guy pretty far.