Geographic location is no longer a constraint in current global markets. Decision makers are more often located in remote settings. As a result, virtual teams are likely to play a primary role in decision-making activities in the near future. Virtual groups usually require a computer-based platform that facilitates effective group communication. This research was undertaken to investigate the effect that two different communication platforms have in group performance over a period of time. In particular, we sought to understand the differences in patterns between a face-to-face and a computer-supported platform with respect to certain performance variables. Response variables assessed by this study included group performance and group synergy. Overall means and performance patterns over time were compared across platforms. Results allowed drawing reasonable conclusions about the impact of training on the dynamics of computer-supported teams. Additional inferences regarding platform effect on group dynamics were also drawn. To do so required an understanding of how computer-supported (CS) and face-to-face (FTF) platforms compare to each other on their patterns over time. Implications of the study and suggestions for future research are also provided.