this is an interesting question. On one side is the argument that you just tell him to go back to doing what he knows how to do and stop worrying about K's. Javy would certainly not be the 1st hitter who put up a better OPS with he stopped worrying about trying to be a 'good' hitter.
OTOH, the story from the Tigers is that Javy has to change anyway because the way he hit when he was 22 doesn't work even from a physical standpoint for a 30 old so they are trying coach toward a different approach. You can either believe they are right or believe 30 yr ball players seldom have success trying to go away from what got them to the majors in the 1st place.
Javy will eventually be adding some evidence to that argument on one side or the other, the question is which?