Complex sentence: For three and a half years he coordinated the construction and design of the 10,000 m2 space, the programming of the space, the staffing and management, the booking of shows, whilst developing a specific plan of operations for the Expo period.
Split into simpler sentences: For three and a half years he coordinated the construction and design of the 10,000 m2 space, its'programming, its' staffing and management, the booking of shows. At the same time, he developed a specific plan of operations for the Expo period.