As I describe in the current issue of Fast Company, companies including AT&T, Steelcase, Zappos and Plantronics have begun stationing some of their best teams outside the mothership in the hunt for new ideas.In Grand Rapids, Mich., Steelcase and three local suburban companies ??? Amway, Meijer and Wolverine Sporting Goods ??? have moved their product, design and business development teams into a G