Complex sentence: He presided over a period of extensive change for the company and saved the company from bankruptcy--he reduced the number of managers, increased productivity of engineers, baggage handlers and flight crew, and saw through a dispute with the airline's cabin crew.
Split into simpler sentences: He presided over a period of extensive change for the company. He reduced the number of managers, increased productivity of engineers, baggage handlers and flight crew, and saw through a dispute with the airline's cabin crew.