I'll save you guys some reading, this is the crux of it, and anybody that's been watching him suspected this:
He's missing hittable pitches. There's no much he can do other than get his swing back in a groove. Maybe some extra drill work or another day off will help. I suspect it's mostly a matter of just getting his timing back. You could see he was trying not to fly open yesterday and he ended up just jamming himself.