What did IRB announce about new substitution methods?

Question

The International Rugby Board will try new substitution methods. Can someone tell me the details of the event?

Answer 1

Wonder if it will be a success?

Answer 2

The International Rugby Board (IRB) has announced that they will try out new substitution methods during matches in the November Tests. New methods hope to mimic soccer protocol and simplify things for match officials keeping tabs on substitutions and on-the-field line-ups, which can be a chaotic affair. For more read: http://blogs.bettor.com/The-International-Rugby-Board-will-try-new-substitution-methods-a36487