Originally Posted by
Jonny London
"A player who is being substituted must leave the pitch by the nearest point on the touchline or byeline - unless the referee says he can leave quickly at the halfway line - or elsewhere for safety or injury reasons.
This change is to stop players time-wasting. Any player who "infringes the spirit of this law" will be booked for unsporting behaviour."
Booking the player coming off for time wasting is no advantage to the opposition team. I'd book the player coming on as its effectively a "team" offence. Soon see this practise stop!!