[randomdata]

But the daily schedule is only dependent on the maximum numbers of hours to the extent that the hours have to fit within that weekly window. If we assume a five day work week, and the maximum weekly total is 35 instead of 40, then you may only have 5 core hours (or 6 core hours and one fewer flexible hour per day), but the predicability remains exactly the same. Changing the total hours per week does not mean having to throw out a schedule entirely.

I am afraid I still don't quite see what impact the total maximum hours for a week has to do with predictability of scheduling. What am I missing?