We just suggest stuff, and if 4/5 of us like it we'll give it a go for sure, but if 3/5 like it and the other two are just ambivalent we'll probably look at it at least in passing. If it doesn't work we'll bin it and think of something else. Yes, it's chaos.
I've scattergunned suggestions during my tenure and so far only one has made it into the set 😂