This, coupled with extraordinary revenue sharing and a element of randomness that impacts both player, coaching, and team performance, makes for greater competitive balance.

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The NFL coaches will conduct a detail breakdown of their in-game notes, but will mostly focus on the video of the game to create a coaching plan for each player based on their performance.

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Coaching done well may be the most effective intervention designed for human performance.

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"There are lots of reasons (for mistakes), like overvaluing combine performance, lack of proper coaching, or immaturity, " says former Green Bay Packers executive Andrew Brandt, who now runs the website NationalFootballPost.com.

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