The CEO is Greg Willman, the brand's first franchisee.
Sales surged past $250 million.
The fast casual is ready to reignite major growth.
He previously served as president of Supercuts.
He previously worked for Dunkin' Brands and Qdoba.
The chain plans to open 100 stores and hire more than 15K workers.
A new POS will 'dramatically' improve efficiency, the CEO said.