Firstly, I don’t see why you can’t take a graduate with some real world experience and train them up to be a teacher in 6 months instead of expecting them to go back to uni for a whole year on a PGCE (a fair amount of which is spent on teaching practice anyway). It would be best if they got people into teaching who wanted to teach, but I don’t see any reason to believe that the majority of people who go onto do PGCEs straight after their degrees are any more likely to be keen on teaching, rather than just having not much idea what else to do after their degree.
Secondly, I doubt very much that the senior managers ar RBS, or for that matter Gordon Brown and Ed Balls, will be the ones that this will be applying for teacher training.
Thirdly, of course any announcement by this government at this stage of its death throes needs to be taken with plenty of salt – they have a history of re-announcing things that are happening already.