This study establishes a model by drawing from key postulates and findings under coopetition to explain the formation of perceived job effectiveness in team collaboration. In the proposed model, perceived job effectiveness is influenced directly by knowledge sharing, cooperative attitude, and competitive conflict, while knowledge sharing is influenced by cooperative attitude and competitive conflict. Accordingly, perceived job effectiveness is influenced indirectly by shared value, perceived trust and perceived benefit via the mediation of cooperative attitude and competitive conflict. Empirical testing of this model, by investigating personnel in information technology (IT) organizations, confirms the applicability of coopetition in virtual teams. The test results indicate that all the model paths except one (linking shared vision and competitive conflict) are significant. Finally, managerial implications and limitations of the research are provided.