No sport can work itself into a muddle quite like football. Until the introduction of semi-automated offsides, we had officials in booths drawing lines on screens to determine the relative positions of one player’s toenail and another’s heel.
Even when the VAR operators delivered their verdict, it rarely appeared conclusive.
On the other hand, we have officials in the thick of the action told they must not signal blatant offsides - and that has led to a bad injury to Nottingham Forest striker Taiwo Awoniyi.
Lawmakers IFAB usually make changes to the framework of the game at their annual meeting in spring.