Whelk stall managers?
Efficiency is when you do more with less. As far as the passengers were concerned, BA did less than nothing with something. His shareholders will find out that not only did he do less than nothing with something, it has cost them as well. Next he will have to convince the board that everything has now been sorted out and this will never happen again. But the little I know about large complex IT systems says that there is no such thing as a simple fix. Complex problems require complex solutions. BA's solution is certainly not in place now and will not be any time soon. Therefore if WW & Cruz are saying anything to the contrary, they are lying. Their "efficiency drive" is jeopardising their passenger's travel plans, BA's staff employment and shareholder value.
WW & Cruz are not fit people to run such an organsiation.