One may remember the old saying: Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime. The part that many people leave out is the fact that the man tends to forget, from time to time, what he was taught. He has to refocus and remember the different components to the lesson.
Sometimes, that requires trusting that the process will wake the muscle memory in his limbs and in his mind.
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In the case of the Alabama football players, that trust rests in head coach Nick Saban.