This is gonna sound crazy man, but what about just pounding the rock all day? If hes putting both OLB in purples you should have numbers and run it down the throat. I played a guy yesterday that had the cowboys, and i used the bengals. He kept trying to stack the box with the 3-4 D and i just kept running the ball. 1,2 down. 3rd and 6 draw play. I kept running the ball until he just quit trying to stack the box, and then i started running quick throws.
So i would pound the rock on him all day, and then maybe do a 3 WR set and pound the rock and see how he plays it. Then pick him apart.