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			Coaching and officiating require different skillsets. 
 
Officiating involves knowledge of rules and mechanics, judgment, game management, consistency, and physical fitness. 
 
Coaching involves instruction, motivation, some rules knowledge (although I hardly expect coaches to know every single rule and caseplay), and the patience to deal with the attitudes of various players (and their parents).   
 
A great coach might (or might not) be a great official.  A great official might (or might not) be a great coach. 
 
My typical thought when a coach tells me he/she "used to be an official" is "Well, there's obviously a reason you aren't one anymore."
		 
		
		
		
		
		
		
		
		
	
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