The above-cited authors also mention that the corporate restructuring resulting from these regulatory changes will allow significant changes in the role of energy efficiency services. The role of traditional DSM is not clear in the terms in which it was originally conceptualized. Even though vertically integrated companies can adjust their capacity expansion plans in the long run, when the demand forecast is reduced by the activities of DSM, the “remaining resource planners” (such as distributors, unregulated dealers, or brokers) would not be able to buy from utilities, in the available market, sufficient energy at the right time, and it would not be possible to defer investments in plants due to resulting rates and environmental impacts. CFE raised a similar scheme of separate business units (i.e., generation, transmission, and distribution) without being disintegrated.