Twelve numbers sit on the table; the board has fifteen minutes and wants a decision. Choose at most five for the one-pager, then commit to one claim with one visible trade-off. The brief is a decision, not a report.
Certum Opleidingen and its monthly pack are fictional composites of training-operations patterns — no real company is depicted · runs fully offline · drafted with AI assistance and fully rewritten, fact-checked and owned by a human.