‘The first-string and second-string units will each get 15-play segments with the following breakdown: Nine plays run like a normal game, so if you achieve a first down, you keep moving downfield, and if you don’t you return to the original drive starting point, probably the 25-yard line. Snaps 10, 11 and 12 will be red zone plays from the 20, and snaps 13, 14 and 15 will be goal-line plays from the 2.’