What they didn't realize at the time was that their site goals could be realized best with an upgrade to Drupal 8. Their site was an important resource for Massachusetts residents and businesses, but it had been built in a piecemeal fashion over the years. Data was not all linked, categorized, and displayed optimally.
We proposed upgrading from Drupal 7 to Drupal 8 along with the visual update. All data would not just be moved from the Drupal 7 to Drupal 8 site, but would be cleaned up and better categorized in the process.
The result is a new site that is not only a massive visual improvement, but also a massive improvement in structure and organization. Content managers were newly empowered to create consistent content across the site. Visitors could search the site in new ways. Data from the old site was still there, without the need for reentering it all.