Before the pandemic, Pizza Hut was already falling behind its competitors. Pizza Hut was the largest pizza chain by global sales until Domino's moved into No. 1 in 2017. Three years later, Pizza Hut's largest U.S. franchisee filed for Chapter 11 bankruptcy. Analysts say Pizza Hut needs to resolve three problems if it hopes to regain ground: reconciling its large restaurant footprint; upgrading its online ordering and delivery technology; offering a more popular menu.