Football without heading is literally unimaginable. How would defenders deal with a long clearance from the opposing goalkeeper? Would there be any point in a wide player putting a high cross into the goalmouth? Would it be necessary to reduce the number of players on each side to allow a greater chance of passes being threaded through a defence at ground level?
I guess the only way to find out the answers to these and many other questions would be to introduce a “no heading “ rule as an experiment in a particular tournament. Perhaps the EFL Trophy has a use after all?