Jered has shown his ability to adapt... Jeff didn't for the most part. Jered already has more K's in his career 1,236 in just 8 seasons compared to Jeff's 1,214 in his 13 year career. They are not that similar. Career WHIP for Jeff - 1.367. For Jered - 1.143. If they have similar genetics, similar deliveries, etc. - how come their results are so different? Jered'd K/9 innings have been exactly the same the last two seasons. Last year his WHIP and BB/9 were below his career average. Sure, he's going to regress some, everyone does - but he's not in the same discussion as Jeff.