Standard microprocessors and programmable logic have been combined to create multi-usable controller assets. These have been reused by multiple Lucent Technologies business units to foster speed to market. The advantages of this approach include leverage of high-reliability, duplex designs so that the using application can concentrate on its application-specific designs. Controller evaluation boards have given software designers an early start while application-specific hardware is being designed. Details from reuse of the MCA-50D, MCA-860D, and MCA-740 duplex controllers will be presented. A modest investment in the creation of controller assets has been of immense benefit to projects in Lucent's Wireless, InterNetworking Systems, Convergent Solutions, and Optical Networking Solutions business units.