Stand rule has to be the first to go
Then the ruck nomination rule. If the rule is only 1 player form each team can contest a ruck contest then it's pretty simple. A 2nd player goes up it's a free. Don't need anyone nominating
The AFL the last decade have been so reactionary to incidents and from there made rule changes. Perfect example contact below the knees. One bloke suffers a broken leg and the AFL panics and creates a rule. Then within weeks players are exploiting the rule to get frees.
It's a shambles