What -438 said.
The old industry-wide yardstick in the 90's was:
100 employees per narrowbody
160 per widebody.
Since then some practices and processes have improved, some activities contracted out, so the targets may a little lower now. Certainly the supervision ratio is ludicrous.
I asked an executive friend at Telstra about their ratio. He said that their alarm bells go off at any less than 9 staff per supervisor/manager/executive. So by that measure QF is carrying a hell of a lot of parasite drag.
And not a lot of it high quality parasites either