I like the story Lawrie and your conclusion resonates with something that has recently become very clear to me about flexibility and flexible learning environments (whether physical, digital or blended). Be very careful about specifying what doesn’t need to be specified, and really specify vey well that which is icritical. In this way flexibility is designed in as a desirable principle safe in the knowledge that what needs to be reliable will anchor pretty much anything else that happens. I learnt this from observing teaching and learning behaviours in SCALE UP classrooms. Such rooms have fixed and well-specified round tables with exactly nine seats. Pretty much nothing else is specified. Consequently every teacher can play around the certainty of those tables and this offers a reliable anchor to procedings. Know what is critical – there rest isn’t!