I have thought of producing a sheet for listeners to sports commentators. There'd be boxes that you can put marks in for,for example,the times the commentator
calls it wrong then changes their own mind.
calls it wrong and changes their tune when the referee gives it the other way.
waits for the action replay before saying what the outcome OBVIOUSLY should be.
waits for the action replay before offering ANY opinion.
makes a mistake in the light of the action replay and doesn't change their view thereafter.
etc.etc.
Then you'd total the number of marks in each box to help assess the commentators,and boy, do some of them need being assessed !
Some of them would be criticised if the 'decisions' they made in the commentary box had to stand. (By them[if you see what I mean])