Hi Judith. First, the brief history of consultancy. Second, Find reasons why firms would bring in consultants at all in the first place. i.e. independant and neutral advice, Expert research, separate accountability(some one to blame),Freeing up internal resource staff, Previous success in innovative areas, etc, etc. I am sure you can brain storm some more. Thirdly, tie in the idea of reducing long-term costs and risk management. If I told you any more, you'd have to pay me...I'm a consultant after all!