Word has it that Northern Rail management have come up with a spiffing new idea for undermining the role of guard, and seem to think that we may be daft enough not to see through it.
It goes like this. The train pulls in to the station. The driver opens the doors. The guards steps onto the platform. When the PTI is clear, the guard presses the buzzer to tell the driver that it is safe to close the doors. The driver closes the doors.