He reads the P&L. Your surety reads the WIP.
A generalist opens the profit and loss, sees a good month, and reports a good month. The document that decides how much work you can carry is the work-in-progress schedule, and it can be saying something completely different at the same moment. If nobody produces it monthly, the first person to read it properly is your underwriter.
Your capacity gets set by the weakest version of your numbers