What if the coach's secretary sent the letter? What if, as was the case at Boyd Buchannan, the head football coach and the school principal were one in the same? If he sent out the letter on "principal" stationary as opposed to "coach" stationary, then would it have been acceptable? No, the "battle" is not over who sends letters, it's an issue of the First Amendment. And that's not my opinion, it's the opinion of at least two federal district courts and the first Supreme Court ruling.