Is it any different than an offensive minded coach calling the plays on offense? Many wanted Pirate Boy Mike Leach to come east and be our head coach. He calls the plays on offense. Paul Johnson calls the plays at Georgia Tech, probably because no one else understands it, but I digress. The Coordinators handle the preparation of the team to run the offense/defense, it doesn't mean they are the best play callers for either side. Last year, we had an Offensive Coordinator that was very offensive because of his preparation, and worse, play calling.