Should we review one project or the whole business?

The review runs at two levels, and the honest answer is to start wherever the doubt lives. The project review embeds with one job's commercial team, a day as standard or up to a week, and watches the month run: the valuation, the variations, the CVR, the records. The business review reads the systems that sit above the jobs: how the CVRs roll up, how the month-end pack and the forecast are assembled, where the sign-offs sit, and how far the reported position can be traced back to what the jobs' records support. They answer different questions, and one often leads to the other: a project review that finds the same gap on every job points upwards, and a business review that cannot trace the numbers points down into a project. Both close the same way, with the hours, the exposure and a ranked list of fixes.