breaking up the pass stops the clock.
tackling them inbound keeps the clock running.
when your offense only manages to burn less then a minute every freaking time , you need to figure out some way to keep the clock running without giving them a chance at a quick TD.
also Pees calls the play and by that lets them know what their responsibilities are.
the DB coach teaches them the techniques on how to excecute that play.
the DB themselves decide what technique they will use on that play.
when its cover 4 or cover 3 and the outside CB is responsible for the deep part of his side of the field , its up to him to decide on how he will do it.
any CB with a braincell will play at least 10 yards off the WR because it will give him the best chance to full fill his assignment.
someone else is responsible for the intermediate and short part of the field.
his only job is to not get beat deep and as long as he prevent that then he did his job.
the only time the CB should even try to play close coverage is if he is responsible for the short/intermediate part ( cover 2) or its man coverage with a safety deep.
zone coverages gives players a responsibility for a certain part of the field.
how they plan on defending that part is up them.
man cov speaks for itself and even that is up to the players discretion on how he will handle it.
