KLOS, you referred to the Staines Trident accident. I knew one of the copilots involved having trained at roundabout the same time. It involved a very steep cockpit gradient (such as is happening more and more now). CRM was introduced to prevent just such incidents in more enlightened regions. It may be a factor in certain parts of the world even now, but it is not a problem in most 'normal' airlines. The experience is sensible behaviour now (for those regions that have taken on board the lessons of CRM). The example we experienced recently was someone recognising they were severely impaired (blood clot) and arranging excellent transfer of authority and control. There is no time for legal shennanigans at 450mph.
Your questions may be needed in other areas and expanded to include Queegish behaviour, but they should be addressed to specific regions where there is still a long way to go. Incidents in the Far East, Indian subcontinent, Gulf, S America and Africa are included, but for the rest of the world, I think we have it sorted, and we call it 'CRM'.