Those who pay attention to sport know NFL decided to fine player who hit hard.

This kind of change of rules in the middle of the season is very very dangerours. I detailed in one of my assay about vision

A Well-defined Vision: the key to driving a hybrid laboratory to success.

When every you change rules, it must be explain to your group members and explain to them why. If it is all possible, do it at the good time.  NFL is showing itself as a “knee-jerk” leader right now.

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