I'm going to post Godzilla and the Sumo Boys together here, as I think they may be the same thing just at different degrees of engagement.
Godzilla, on the left, is trying to climb out of the ground by using its roots like legs. If I don't figure him out soon, I fear I may find him on the roof some morning swatting at the birds that like to roost there. And Sumo Boys, on the right, may just be letting me know that it is time to divide and separate, but they appear to be so more at peace than their garden name implies.
What do you think, divide, replant? Relocate all related fans together and just try to put the crowns down lower? With the Godzilla group, the main crown is already well under the soil, so maybe its time to untangle the others and get them to tread-ground at their own levels. With the Sumo Boys, well, I see this so often with otherwise healthy and happy daylily fans that I'm not sure I should disturb their embrace.