This 3 sentence summary provides the key points from the IBM Global CIO Study executive summary document:
The study interviewed over 2,500 CIOs worldwide to understand how CIOs can make the biggest impact as a member of the senior executive team. Successful CIOs were found to blend the roles of an insightful visionary and able pragmatist, savvy value creator and relentless cost cutter, and collaborative business leader and inspiring IT manager. By balancing these six roles, CIOs can achieve the goals of making innovation real, raising the ROI of IT, and expanding their business impact.