Altered NFL rule allows head coach to select staff member to initiate challenge calls on their behalf
The image of an NFL head coach angrily throwing down a red challenge flag might be in jeopardy though probably not. A new change to the NFL rulebook will allow head coaches to designate a member of … [+1486 chars]
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Original source: https://sports.yahoo.com/nfl/article/altered-nfl-rule-allows-head-coach-to-select-staff-member-to-initiate-challenge-calls-on-their-behalf-184304487.html