A tale of two Seo's

This year Seo is holding lefties to a .209 avg / .628 ops and righties are tagging him for a Helton-like .373 avg / 1.043 ops. Too bad there are many more righties than there are lefties. Righties hit him hard last year as well, hitting .291 against him, but his control seems to have gone to wayside too. His K/BB ratio is down from 2.39 last year to a horrendous .79 this year. His velocity is down as well. He used to be able to get his fastball into the 90's. The reduced velocity really makes his changeup a less effective pitch. I hope he figures this out soon.