I've always said the problem is they select the wrong people in the first place:
Q: Have you got a degree? A: Yes.
Well you're in; doesn't matter if you know nothing about aircraft.
Q: Have you got a degree? A: No but I've held a FISO licence for XX years and worked at several busy airfields and I've only got 2 GCSE's but I love aircraft and will do anything to work with them.
Sorry mate you need 'A' levels at least goodbye.