...Langerhans has a swing similar to Raul Ibanez' swing...topspin with an average GB/FB, a slightly better sense of discipline than Ibanez (more P/PA) with roughly the same EYE (2 K/BB ratio...league average in that department). So why is Langerhans not able to succeed where Ibanez did? I posit that Ibanez was better able to adjust to change-ups and hard stuff than Langerhans. If it were pitch recognition, we would expect Langerhans to have a worse EYE than Ibanez, and he doesn't. Langerhans is, however, in the Ibanez template for batting...and Ibanez always did better against pitchers who heavily featured sliders and 2-seamers and significantly worse against high hard stuff. And Ibanez' lefty split was negative against all-comers but singificantly positive against short relief lefties (in other words, he could not hit your average lefty starter, but the LOOGY types with marginal velo and good sliders that populate most bullpens he could handle very well).