In a longitudinal field study of 37 professional project teams over almost 2 years, we investigated the dynamic relationship between perceptual shared cognition and team potency in predicting team performance. Our main results show that initial levels and change in perceptual shared cognition explain team performance outcomes through initial levels and change in team potency, respectively. Thereby, our findings confirmed that initial levels and change in team potency operated as an explanatory mechanism for the relationship between shared cognition and team performance. Interestingly, shared cognition change shows larger benefits on team performance outcomes than initial levels. In addition, we show differential relationships of task- and t...