I would guess these two numbers are the main issue: Stats (AAA): 28 GS, 146.2 IP, 4.66 ERA, 8.8 K/9, 4.8 BB/9, 1.83 K/BB, 3.83 FIP But I would think that even his small sample stint at the MLB level would temper that some, since it was quite a positive step for him: Stats (MLB): 6 G (5 GS), 29.0 IP, 2.48 ERA, 7.14 K/9, 3.4 BB/9, 2.09 K/BB, 2.65 FIP