What if you created a visually appealing map where volunteers could see the space and team leaders could manage placement for experiences? Here are two maps (inside and parking) I had designed for one of our locations.
These metal boards are each 4x8 and finished with a coating that allows us to use dry-erase markers should we need that option. I also had dry-erase magnets designed for each team. They simply take a magnet, write their name on it, and place on the board. The magnets give us team identity, flexibility, and visual appeal.