Requirement or Courtesy?

[bob jenkins]

In many other sports, it's either required or a good practice to inform the coach of the number of timeouts used / remaining.

It should, imo, be the same in basketball (and I read the rule as it alreadybeing required, but to the extent the wording is "confusing" it should be clarified).

It's a mechanic though, so failure to do so doesn't relieve the coach from the ultimate responsibility.