Andy - there’s a venn diagram image (which I can’t find the original at the moment). It has the three circles (operational, strategic and cultural) to represent the three domains of agile. I use this a lot and it really resonates. if some-one has the orginal let me know so I can attribute!
I explain that all the language they are hearing about rituals and ceremonies are belonging to Operational (Big A agile). Examples of Strategic can be found in stuff like Lean Start Up / Innovation as a strategy driver. I always give David Marquet’s material to leaders to explain Cultural agility.
Its very helpful in underscoring why just moving to an Agile operating model will not bring success eg you need to ensure there strategy is driving it and the leaders are down with the cultural implications.