Place two defenders three yards apart and designate a player to play the offensive lineman position. Position the lineman in between two cones and align a linebacker in base alignment. The coach designates the lineman's blocking technique (i.e. base, down block, zone scheme, pull, trap, pass set) On the cadence, the lineman carries out his technique and the linebacker reacts accordingly. The drill should be conducted until all linebackers receive a sufficient number of repetitions.