I'm on the fence on that one, to me it's a little from column A, and a little from column B.
He was extremely unlucky in the sense that many many many seeing-eye singles and dribblers were hit off him this season going by my personal Eye-Test, (I know, but still we all do it), and the opposition had a tendency to bunch together their baserunners against him, (cause, or effect?) resulting in the lighting up of the Pythagorean, with juuuust over a .350 BABIP against.
He was also quite s***** judging, again, by my personal Eye-Test, leaving waaaaaay too many 91 mph 4-seamsers over the heart of the plate with zero movement that were capitalized on by hitters who will most of the time, this being The Majors.
The miserable, pessimist **** who rents considerable office space within my brain is yelling at me that he's going to continue to bust if we hold onto him, and conversely regain enough form to once again become a soft ace or very good #2 if he walks. Emilio Bonifacio isn't helping matters on this front. =/