I have lots of rules. Sometimes it is hard to know which one is being applied in a given play.

It would be great if there was a coaches mode for the play by play where you could see the name of the rule or condition that generated that play, e.g. 1st&Medium opponent 0-25 or Rule#5 "4th and inches goal-to-go"

Exclusively for the Coach whom is logged in and watching his game? That's pretty cool but might be difficult to code and not make mistakes. (i.e. public slippage, wrong eyes seeing it)

Yes it would be best to be coach's eyes only.