Are you watching and learning, Lufthansa? (though I suspect you're already painfully aware of the mess in bmi "management")
Time to sharpen those hatchets. Lop off all of the bmi "management" heads, until all of the cancer is removed.
Start again. Fresh management position applications and interviews. Get some decent people in. People with brains, ability, man-management skills, honesty, integrity, commitment to the advancement of the company.
You've paid off the main perpetrator of this management culture. Now turn bmi into a company with vastly improved efficiency and profits.
You should all give thanks for the bizzare (anti competitive) system of Heathrow slots masking the rubbish management, or you'd all have been down the Labour Exchange years ago.