Attempts to increase the efficiency of case management in arbitration have been around for some time. They were mainly focused on the design and use of certain procedural rules and tools. It is beneficial that this work was undertaken, but it seems to reach its limits to improve case management. More recently, the arbitration community has started to discover the wealth of psychological knowledge to better understand and manage certain aspects of the arbitration process. However, this curiosity was limited to specific issues, such as psychology of witness evidence or of decision taking. This article proposes to take a bird’s eye view based on organizational psychology and management science and asks the question: Can the established knowledge about successful teamwork be applied to arbitration? The article reviews, if such a holistic teamwork approach leads to avenues for improving the efficiency of case management in arbitration. The answer is clearly affirmative. To view the interactions between the arbitral tribunal, the parties and other participants in the arbitration as teamwork provides new perspectives and can lead to new attitudes as well as to new tools for managing cases. Arbitrations guided by a teamwork approach promise to be more efficient, to involve parties and arbitral tribunals more intensely – and to be more enriching for the participants.