Over the five seasons which have elapsed since the last time the D-backs finished with a winning record, 214 pitching seasons have taken place worth three bWAR or better. The Diamondbacks have had precisely one of them: Wade Miley’s 2012, which was worth 3.5 bWAR. Put another way: during those five years, 55 different players have enjoyed more three bWAR campaigns, than all Diamondbacks combined. Since Miley, our top pitchers each season have been as follows:
Now, having an ace for your rotation is not an absolute necessity for success.