Not just the workforce will change. Traditional compensation models won't work in the new model. This topic is covered at length in this week's Enterprise Careers section. IT will form the heart of enterprise risk management, performance improvements, and investment decisions. That scrutiny is one of the reasons that IT will be subject to more rigorous planning and analysis.
Information management subsumes IT management.
The bad news is that over the next five years a lot of IT executives will fall from grace by failing to adapt. Most at risk are managers who don't see that business and technology are fused. Executives, IS managers, and business managers all will be involved in delivering strong results, in deciding or driving enterprise growth, in ensuring the right technical and skill foundation for business plans, and in defining which initiatives are right for the enterprise. IT will increasingly serve as underpinnings or even as drivers. IT organizations will be transformed along with the executives.