I remember watching a programme last year, where a very well respected expedition company, simply cut corners and forgot to provide sufficient numbers of oxygen cylinders.
The cylinders for one expedition had for some reason, been accidentally left at a lower camp, poor communication between the expedition leader and sherpas was sited as the reason that several climbers died.
Also, two climbers intent on reaching the summit come what may, ignored distressed calls from base camp, to turn around, and with no oxygen available at the required altitude, both died on the mountain.
The logistical nightmares of ensuring the safety of every climber on the highest mountain in the world, especially when the weather closes in, as well as ensuring sufficient oxygen is available for all, no, i certainly do not envy the responsibility of organising such a trip.
The lure of the summit is so great, that some climbers, experienced and inexperienced, simply ignore the pleas to turn back to safety, when the summit is so near.
Running out of oxygen should never happen, leaving the bottles at a lower camp on the mountain, knowing full well they would be needed, totally unacceptable, What went wrong ?.
I forget the name of the programme, but calamity after calamity happened.
Bad organising by a well respected and successful company, as well as climbers who really should not have been on the expedition, a big clash of personalities.
When the person in command of the expedition wants you off the mountain, respect his wishes.
Yes, an attempt on the summit costs well over £40k, but the lure of the summit is simply too great.