I figured it out.
Icenhour was pinpointed by the engine as being the creme de la creme of his position. I had to take the sniper's target off him by shifting him to RB.
This is akin to the era where the elite QB whom were 95 rated would always be horrific. (v4.2?) ...a few real life years of this. They were created with low speed and low avoid fumble. Whatever it was the engine identified them as not being able to produce.