TG,
Have a read of Normalisation of Deviance..The challenger launch decision.
It is a scary read as commerical pressures weaved their way through every facet of the operation of the STS at NASA.
The result an accident.
Accountants ought be kept away from anything operational. An airliner is not a widget, it carries many people. Look at the board of Qantas and even the "senior management" team, not an operational person amongst them..
Not everything that can be counted counts and not everything that counts, can be counted..Albert Einstein