Someone is going to have to crack open a can of #FootyMaths to assist in the AFL's on-going struggle with unintended consequences.
Since the introduction of the current substitute rule, footy fans have been party to the following justification:
"The substitute rule works brilliantly. Late in games players are tiring dramatically, allowing the games to open right up."
Of late, conspiratorially as a distraction from GWS shenanigans and other inspired AFL hi-jinx, it has been mooted that the game is too long:
"At 30+ minutes, quarters are too long. Late in games players are tiring dramatically, putting their well-being and careers at risk."
In a nutshell: We can make the game better by making the players more tired; by making the players less tired, we can make the game better.
The AFL, through its rules committee, introduces a new rule or rule modification - "tweak", to employ the prevailing user-friendly vernacular. Mind you, Kevin Bartlett remains dogged (tiger-like, even) in his defence: "there are next to NO new rules." This change, in turn, precipitates another change, and another, etc, et al, and so on. Which is great for KB, who gets to oversee another tweak. See how it works?
Next step: two substitutes.