The Impact of Cross-Functional Joint Involvement Across Product Development Stages: An Exploratory Study

Cross‐functional integration offers numerous, well‐documented benefits for new‐product development (NPD), but it also can carry significant costs. Joint involvement of R&D, manufacturing, and marketing personnel can increase the quality, the manufacturability, and the marketability of the final product. However, building consensus among these groups, with their differing perspectives and goals, may require time‐consuming meetings as well as tremendous finesse from the managers who guide the NPD effort. Those managers require an approach to cross‐functional integration that strikes a balance between efficiency and effectiveness. X. Michael Song, R. Jeffrey Thieme, and Jinhong Xie propose that the right mix of cross‐functional involvement may differ depending on the stage in the NPD process. They also suggest that blindly promoting the involvement of all functional areas in all stages of the NPD process may actually decrease NPD performance. They test these propositions in a study that examines the relationships between new product performance and cross‐functional joint involvement between R&D, manufacturing, and marketing in five major stages of the NPD process: market opportunity analysis, planning, development, pretesting, and launch. Their objective in this study is to identify patterns of effective cross‐functional involvement in different NPD stages. The study uses data collected from 236 managers working in the R&D, manufacturing, and marketing departments of 16 Fortune 500 firms. Their findings suggest that new‐product success may be more likely when a firm employs function‐specific and stage‐specific patterns of cross‐functional integration than it is when the firm attempts to integrate all functions during all NPD stages. For example, during the market opportunity analysis stage, the findings suggest that joint involvement between R&D and marketing may be productive, but joint involvement between R&D and manufacturing and among all three functions may be counterproductive. The results also indicate that joint involvement among all three functions either does not have a significant effect on new product success or may be counterproductive in all stages of the NPD process. For the firms in this study, the three functions seem to take turns playing the central role in cross‐functional activities. During the product planning, development, and testing phases, the role of the focal function, or communication hub, shifts from manufacturing to R&D and then