General Mills, the company behind Cheerios cereal and Häagen-Dazs ice cream, is headquartered on a leafy expanse outside Minneapolis, Minnesota. Enclosed walkways connect a network of modernist buildings, protecting Midwestern workers from heat and humidity in the summer, and bitter cold and towering snowdrifts in the winter. Inside the halls, some 3,000 people work on everything from product development and marketing to litigation, regulation and mergers and acquisitions. Continue a leitura…