John Wren - Coaching the 30-Stack Defense
(2010) Program Development / Design
Football
coaches-choiceathletictvjohn-wrenfootballdefense30-stackpersonnelstuntpressurealignment
John Wren - Applying Concepts of the 30 Stack to the Bear Defense
(2010) Strategy
Football
coaches-choiceathletictvjohn-wrenfootballdefense30-stackbear-defensealignmentstuntpressure