She also said he was in a talent pool when he was recruited. He emailed HR regularly and also found out his position in that pool. That made me decide to email HR...they replied saying the talent pool 'wasn't complete and they would be in contact when it was'!
..and I've read on here that the class sizes have been cut to 4 and internals are prioritised in the pool. So it all seems above board. I asked my wife what he did and she said "ticket collector", not sure if that means guard or station staff.