Miami — Subway, one of the world’s largest restaurant brands, has officially opened its new global dual-headquarters in Miami’s Waterford Business District. (The brand will also maintain its headquarters in Milford, Conn.) Located at 1000 Sub Way — a new street name designated by Miami-Dade County — the space is designed to advance the brand’s multi-year transformation journey to improve across all aspects of the business, including its workspaces. The office features the first-in-Subway-history Innovation Center and Mock Restaurant as well as a modern, open layout with multiple collaborative spaces, …