CIOs have an important role to play in managing that complexity, authors say. Companies that successfully trade off the value of variety against the costs associated with adding more complexity outperform their peers by two to one in revenue growth. Reliant Energy is one company that’s realized how damaging the costs of complexity can be. BOC Group, a major U.K. supplier of industrial and medical gases, found value of its offerings was created by segmenting lines of business driven by customer needs.”]