That's a giant leap of faith Martin.The Agenda for Growth agreement stopped Royal Mail from doing that for 10 years.
It's also a giant pile of something else.
I know you were a fanboy of the legal protections, you were after all one of its greatest salesmen but any decent lawyer would tell you it had more holes than a string vest and the union was never going to venture anywhere near a court with it.
What stopped a two tier workforce in Royal Mail was a combination of circumstances nothing more, it just wasn't the right time. Had covid not intervened we would probably have faced this 3 years ago. Obviously now is the time.