We did it sort of organically...started with just a North, South division which reduced loading issues...and then those pages slowly grew and branched into diff

We did it sort of organically...started with just a North, South division which reduced loading issues...and then those pages slowly grew and branched into different zones. Most people only needed data from their zone. It depend I guess on what your users are looking for. The few who needed data from all pages created and shared their own sheets with aggregation/tracking etc from all sheets.