In UK the management at BA spoke of a "pyramid model" which instead of having say 5 Licensed blokes a shift in charge of 3 or 4 guys each, they gradually changed it to only 1 Licensed engineer in charge of 2 or 3 A licensed guys who in turn were in charge of 7 or 8 mechs and 3 or 4 contractors.
It resulted in items being stamped blindly because the licensed guy at the top did not have anywhere near the time needed to oversee this amount of work. Plus the fact there was so much paperwork to deal with his arse was permanently on a chair stuck in the office.
I saw guys leaving the industry because they could not keep up due to the pressure and stress levels being just too high.
So much for Human Factors!