Give the Machine the Work, Keep the Judgment Human

The most useful line in an experimentation system runs between work and judgment. Work belongs delegated to tools. Judgment stays with the human.

To the machine	With the human
Set up campaigns	The hypothesis
Generate variants	The definition of the metric
QA and format adjustment	The judgment of whether a result is real
First-draft reports	The decision: scale or stop

Tools like Meta Advantage+, Google Performance Max, GrowthBook, Statsig or GA4 are excellent on the work side. The four items on the judgment side are not overhead - they are the substance of the work and the one competence that separates a team from its competitors.

A reliable rhythm beats a big number. Results are reviewed once a week, at the same time, by the same rules. Every live test leaves the meeting with exactly one decision: scale, stop, or iterate. No test stays in limbo.

Result from practice. A Series B company moved from more than 20 tests a month to six properly powered tests with one weekly decision meeting. Within a quarter, the hit rate of scaled tests rose to roughly two-thirds, and cost per acquisition fell by 24 percent.

This is the same principle by which TYS builds every brand: structure before acceleration. A tool amplifies what it finds - a robust method as readily as a hole in the method. That is why the TYS Initial Check begins with the audit, before you scale it.