It is not true where a pricipal cannot be a coach. It is up to each buildig administrator. Coach Duncan chose to resign, although I know that the principal does not want the administration coaching,it is not a board policy.
They have hired assistant coach Justin Hollingsworth, he will do a great job and I am glad he has got this opportunity. Good luck to the braves, they lost several great seniors but the rebuilding process will now be under way and I look for the braves to be just fine under Justin. Go braves and good luck coach