Pruitt is the quintessential button-pusher. He does not really know how the machine works or how to design his own, but he can follow directions well and knows to press the green button when the blue light comes on, pull the lever when the red light comes on, etc.
Watch this video for as long as you can stomach it, which isn't likely to be long. It is obvious he understands defensive football on a technical level, but his ability to 1) come up with this stuff himself and 2) explain it in an effective way is truly lacking. He uses internal jargon like "Stump" without really explaining it, like he just assumes everybody knows what that is, and in the film he shows from practice he repeatedly goes "Well, that guy wasn't supposed to do that." It's amazing.