[Dave Brost]

Mark is correct. The head coach, and only the head coach has the coaching box privilege. He cannot designate someone else, or change at some point. If the coaching box is lost due to a technical, the box is lost for the remainder of the game. Also, the coach must now stay seated on his bench. He cannot even be kneeling, with contact to the bench. At least this is the rule in Wisconsin, which has the seat-belt rule.