How should the project structure function in terms of reporting?

The project structure in reporting should indeed produce detailed cost reports and support execution. This functionality is crucial because generating accurate cost reports allows project managers to monitor financial performance throughout the project lifecycle. Detailed reporting helps in tracking budgets against actual expenditures, identifying variances, and making informed decisions to keep the project on track.

Additionally, a well-structured reporting system not only aids in financial management but also supports the execution of the project by offering insights into resource allocation, timeline adherence, and overall project health. When project stakeholders receive comprehensive and structured reports, they can better understand the project’s financial status and make timely adjustments as needed.

While simplicity and ease of understanding are important aspects of any reporting system, they should not come at the expense of detail and functionality that allow for effective execution and financial oversight. It's the balance of complexity with clarity that ensures the reporting structure serves its purpose effectively.