Each band had a number of conductors.. one lead conductor, and then others at certain locations that would follow the lead conductor, so everyone could see.. well, at times during the performance, these other conductors had to book across the field to get to their next station.. Some of these people were pretty fast. I think if I had to perform, I'd want to be one of them.. at least you get to run every once in a while, and perform some weird complex saluting thing at the beginning and end.