Church:
Good Idea!!!
And maybe football coaches should post every play they're going to run (in order)before the game so their opponent can see it.
Maybe, pitchers in baseball should have to tell the batter what pitch he is going to throw before he throws it?
Part of the gamesmanship of duals are coaches moving their lineups to give them the best chance to win. The goal is to win the dual, right?
However, if the coach and referee don't know the rules about who steps on the mat first, I could see why they would rather not have to deal with it and just would like to have the lineup posted.