Sometimes it happens often. For a while it was very fluid, fitted with our routine, good compromise was there and mostly parts stayed on the same page.
Then there was crisis. Parts that don't usually front often had to front. It messed up our life, we phoned the police to report or parents, went to psychiatric hospital, quit our job, couldn't remember what the part who called the police said so they couldn't do anything, switch switch switch. Was bad.
Feel like I'm getting into a more settled routine again now, switching seems to have calmed down and perhaps some parts are temporarily melded together, that's how it feels and what would make sense.
I've starved myself, got fat. Practiced different religions at the same time. Had different life goals that conflict. It's challenging to get everyone to agree.