We've been here before
Several times in fact.
It didn't end well those previous times; there is no indication that it will do so now.
RBS management don't seem to have learnt their lesson; and it's highly unlikely that they will do so, until the day that they get penalised for making poor decisions. I'm not talking about a slap on the wrist paid for by the company, but rather something that comes out of their pay packets, to reimburse anyone that loses out because of a failed system.