I think it depends. If you're looking to fulfill a vacant position like making coffee or setting up and taking down, then we usually discuss it at our business meeting.   

If you have an issue with how 'someone' sets up, generally speaking, including the placement of literature to how they hang the shades, then Tanin would be correct.    

the group conscience varies from place to place, meeting to meeting, so you might want to check with the Leader first before you proceed. Just food for thought.