Rob Lynch is leaving his role as CEO of Papa Johns to take on the same position at Shake Shack, effective May 20. Lynch succeeds Randy Garutti, who announced his intentions to retire in December after leading the company for more than two decades. Garutti will transition as an advisor in May to ensure a smooth transition.

Lynch was hired at Papa Johns in August 2019 and helped drive record global systemwide sales of over $5 billion at the company. He has also led the company’s growth to approximately 5,900 units.