I can't remember who said it, I think it may have been Dave Cameron of Fangraphs, but they said that Tulo is a victim of his work ethic. They said that he's complicating things for himself, instead of just being what he was in Colorado, someone who looks to swing aggressively until his eyes tell him differently.
I think one of the best focuses he can place to attempt to right his ship, at this point, is cerebral.