Allan Tanner discusses changes to an organization's intranet navigation and information architecture (IA). The current launch version from March 2016 to October 2017 is being revised with updated level 1 navigation and a new megamenu design launching in early November 2017. Tanner emphasizes that IA is fundamental to findability on a site and should not be neglected as sites evolve quickly. Testing and iteration is important to review site structure and gather evidence to convince stakeholders of needed changes.