The problem with challenging Kosuke is that he can drive pitches, especially on the inner half. He has enough power to hit gappers and home runs when he gets pitches on the inner and middle portions of the strike zone, especially pitches that are thigh-high and above in the zone. I think most of MLB would agree with this but his below avg ISO (.128) is telling me a different story. Maybe he'll make adjustments and add more power. He's an interesting player to watch.