Just ask yourself, whilst preparing, "what am I actually trying to achieve when utilising CRM?" and "How do I know if CRM applied during even a non-eventful flight was sufficient?"
That is where I think CRM needs to improve.
I think that crews would benefit (especially at the early stages of their career) from having a short, well defined, practical list of "CRM tools" or tasks that they can actually use. For example, if the aim is to have crews recognise situations that increase the risk of errors happening, the list would suggest that when they went to work next they tried to identify any situation/event that was not normal, or was a distraction. If the crew member has been taught why these things lead to mistakes, then this would fast-track their ability to sense when they need to take extra care.
So that could be number one of a list of ten things they can catually
do
at work, on the aircraft.