Fueled in large part to a pretty awful walk rate, lousy enough that his middling strikeout numbers could never hope to overcome it going forward. His saving grace this season was that his miniscule BABIP dodged the regression bullet for 5 months. His .245 mark through August was 15th lowest among the ~135 relievers on the FG's leaderboard. You can't outrun the regression hammer, eventually it will come crashing down. (and yes, I'm apparently late to this party)