I know it is hard to totally overhaul a swing, but I wonder what would happen if he totally reworked it during an off season and got rid of that rhythmic spasm he has while awaiting the pitch. It seems to me that stillness would help with inaccuracies of swing but I guess a lot of batters have success despite twirling the barrel of the bat while awaiting the pitch.
He supposedly tried that last offseason and obviously it didn't work. And what makes his struggles worse is that he's getting pitched almost like a pitcher, at one point last year he had seen the highest percentage of fastballs of any non-pitcher. Guys weren't even trying to fool him, they knew they could just throw it by him and he couldn't make them pay.