When a phase of a project takes longer than initially anticipated, it's important for the project manager to understand why this happened in order to prevent similar issues in the future1. Organizing a root cause analysis (RCA) workshop allows the project team to identify the underlying cause of the delay1. This understanding can then be used to implement corrective actions to prevent similar delays in the future1. This approach not only addresses the immediate concern of the stakeholders but also contributes to the continuous improvement of the project management process1. References: PMI