A valuable method for teaching athletes is to show them video of their techniques and then correct their flaws. Coaches can show examples of players who exhibit game-sound ability to help with the educational process. But when should coaches use video?
First, coaches must establish a foundation of teaching the correct techniques in developing skills. Those techniques have to be repeated every time skills are emphasized in practice. When players are not comprehending what the coaches are teaching, then coaches should tape the technique in question and explain to athletes not only what they are doing wrong but what their strengths are.
Today's generation of players understand visual evidence because of their internet use, and they can correlate what they see and apply it to understand and improve their skills. In several instances as a high school coach it has helped our pitchers and hitters significantly, and with their improved performance they became all-conference players and college prospects.