Bob Brese steps down Friday as the chief information officer of the Energy Department. He leaves right before the agency starts a technology consolidation program he helped plan for the last two years. Keith Trippie, chief executive officer of the Trippie Group and former executive director of the Enterprise System Development Office at the Homeland Security Department, has predictions for how the roles of future CIOs will change over the next few years. He tells In Depth with Francis Rose why the job can change so quickly. Read Keith’s related column.