And it sounds good.
If a state has not adopted the coaching box rule - and I doubt that any of them have NOT, then the coach could not stand for anything but those specific items listed in 10-5.
My point was that the coaching box definition (1-13) says that it's only use is to coach and instruct players. And that use, of coaching and instructing, is what I assumed the coach would lose.
It's great to see some rules discussion starting again!