Simplicity means that the offensive package — often thought of as the playbook, which for NFL teams could run to hundreds of pages — gets reduced to the bare essentials. For Holgorsen and the rest of the Air Raid spawn, there is no written playbook. Throwing the ball against a variety of coverages and fronts is hard enough, but overloading your players with sight reads, multiple protection schemes, and shifting assignments makes the whole endeavor nearly impossible for 18- to 22-year-old players. This simplicity makes repetition possible. Indeed, Holgorsen installed his core offensive package at West Virginia in a measly three days; the rest of spring practice and fall camp was spent repeating those three days over and over to perfect the scheme, with additional wrinkles judiciously added.