I divided and moved some of the 'Autumn Joy' sedum earlier this summer, and am pleased with how well it is doing. So pleased that I am going to move it again next summer.
The plants I moved get more sun. Also, I learned I can control their height by pinching them back. So now I am envisioning a cascade of 'Autumn Joy' from the top tier, over the castle block, to the bottom, where it will flow like a river of sedum across and down the bed by the front sidewalk.
There is a white version of the same type of sedum that will be integrated somehow, plus the low growing sedums that creep along the ground.
I will also divide and move 'Zagreb', the last of the coreopsis, to sunnier locales, and will probably suppress the calendula that is establishing itself in this bed. Instead, I want all sedum, all the time. At least, that is the plan for now.