I get it.
But you have to agree it doesnt specifically say that "thou must always have 5 if available" in the rule book. It says that in the case book. Which means I need to spend some more time with the case book as a source of more complete rules not just situations and examples. In the past, I have used it to go over situations or for reference. But it seems the case book may actually contain clearer and more explicit rules statements than the actual rule book.
For example, the rule book should say "A team must have five players participating as long as it has that number available. If no substitute is available, a team must continue with fewer than five players." Why is that in the case book and not in the rule book? That is a much clearer statement than 3-1, dont you agree?
But then as an attorney I am frustrated by the way the rule book is written anyway. For example, definition are chapter 4. That drives me nuts
Definitions should be chapter 1. But I digress....