The relationship between team temporal leadership and performance has attracted the attention of both academics and practitioners. Theories and studies of team temporal leadership have generally focused on Western teams, and there is a noticeable dearth of empirical verifications focusing on Taiwanese sales marketing teams and the relationship between team temporal leadership and performance in Taiwanese pharmaceutical companies. However, Taiwan has a unique pharmaceutical sales marketing model involving diversified competency, apprenticeship, teamwork, and time management. Thus, this study examined the relationship among team temporal leadership, competency, followership, and performance using linear structured equation modeling. Results from the 360 leader–employee dyads of the sales marketing team revealed that team temporal leadership, competency, and followership are positively related to performance and that team temporal leadership is positively related to competency and followership. According to the results of the research, suggestions for future-related studies are proposed.