This is the order that works: data before design, design before creative, a test before a rollout, and a judgment date before launch. Each week ends with something written down.

1. Week one: read what you already haveScore the audit. Build the door table (chapter 7) and the one-and-done split (chapter 8). Read fifty low reviews and fifty ad comments into the objection map (chapter 10). Pull the first-offer history table (chapter 21). Written: the door, the one-and-done rate, the top objection.
2. Week two: design on paperWrite the five decisions (chapter 2). Match the mechanic to the objection. Run the economics tool with finance’s costs (chapter 9). Write the second offer and its timing (chapter 15). Score the six gates (chapter 23). Written: the two-sentence thesis and the break-even targets.
3. Week three: build and launch the testBrief five or more creatives for the new offer and hold the old offer as the control. Set up the on-site holdout if you can. Exclude existing customers. Write the five-line bet. Written: the bet, the budget per offer, the stop rule.
4. Week four: first read, not a verdictCheck new customers per offer against the evidence bar (chapter 20). Check first-order contribution against the targets. Decide to extend, stop, or move the winner toward the core. Written: the decision and the day-90 and day-180 dates in the calendar.

The test ends in four weeks. The judgment ends at day 180.

Then leave it alone long enough to learn. The core offer earns its keep in the cohort, and the cohort takes months to read.