This is a progressive drill:
have 3 defensive linemen at a time lineup and face the coach,
who will do the head motions. The defensive line man must
react quickly to the head movements.
pair up the defensive linemen, and a coach standing behind
the designated defensive lineman signaling the kind of block
and snap count to the designated offensive lineman. Have
the defensive lineman react to the movement of the opposing
Finally, lineup one defensive lineman against three offensive
linemen to work on correct reactions to away and combination
blocks. Again the coach will stand behind the defensive
lineman and signal block and snap count.