When you hear "audible-ready", the first thing you probably think of is football. Specifically, when a quarterback steps to the line and changes the play call to one that takes advantage of weak defense . In a matter of seconds, the quarterback analyzes the defense and changes the play. Being able to recognize the strengths and weaknesses of the defense is crucial to how successful the offense will be. In football, making the correct audible calls can be the difference in winning and losing a game.