Rethink Priorities

Note: The source excerpt provided is primarily navigation and content descriptions from the Rethink Priorities website, covering their research areas, services, and mission statement. While it confirms Rethink Priorities exists and was established in 2018, it contains no information about the organization's leadership, personnel roster, or Kieran Greig's role. The source URL indicates there should be a 'team' page, but the excerpt provided does not include team member information. To verify this record, the actual team page content would be needed.