1.12cm

They don't even need to force it on clubs at EFL level as it can be fairly expensive as some stadiums will need some work done on them to make them suitable. They just need to start saying that if you have the ability (as the likes of Sunderland do) then it has to be used. When clubs realise the benefit of GLT those who can afford it will quickly jump on board and while it may take a while for everyone to have it its something clubs where finances are tight and implementation costs are higher can start working towards it

 

They couldn't afford it though. Its not a system that you can buy and implement anywhere, it has certain stadium requirements to work which as you go down the league's many clubs simply won't meet the requirements. To force it on them it would require the EFL to fund massive building projects to get the stadiums upto the required level

 

And that's in PL stadiums all of which required very little work on the stadium to make them suitable. At League One or League Two level you could see it costing millions

 

It's not like its guaranteed to work in their favour though, it can stop goals they would have been awarded otherwise for them as well as goals against them.

And the thing is its £250k per club to put in in place IF their stadiums meet the requirements. Otherwise you could be looking at millions. The league can't afford to fund that and many clubs can't afford it at that level. It is something that is only ever going to be viable if its introduced bit by bit as clubs can afford the stadium and the implementation cost (it also apparently costs about £3k a game to operate)