Why do you use an exercise? Where does it fit into the bigger picture? What was the origin of the exercise? Does the exercise do what you think it does? Is the exercise adaptable to the athlete or the sport environment or do you have fit the athlete to the exercise? Is there an alternative exercise that is better? How do you progress from this exercise? Is it nice to do or need to do? Beware of "Sheep Walking" – are you just following the flock,or is the exercise really all it is cracked up to be?