Who This Helps
You're a growth marketer who wants to move channel metrics without guesswork. You have a dozen experiment ideas, but only time for one. You need a way to pick the winner before you run it.
Mini Case
Mei, a growth marketer at a SaaS company, was stuck. Her team had 8 experiments queued up, but no clear way to prioritize. She spent 3 hours debating which one to run next. Then she used data contracts from the Data Reliability Leadership course to define what success looked like for each channel. She found that one experiment had a 12% higher potential lift on the metric that mattered most. She ran that one first. It worked. The team saved 7 days of wasted effort.
Do This Now (5 Steps)
- List your top 3 channel experiments for this week.
- For each, write down the one metric that proves success.
- Check if that metric has a data contract—a clear definition of how it's measured and where it comes from.
- If not, create a simple contract in 10 minutes: metric name, source, calculation, and acceptable range.
- Rank experiments by the contract's reliability score. Pick the one with the highest score.
Avoid These Traps
- Don't prioritize by gut feel alone. You'll pick the shiny object, not the real winner.
- Don't skip the data contract step. Without it, you're comparing apples to oranges.
- Don't run more than 2 experiments at once. You'll split your focus and get muddy results.
- Don't ignore the reliability baseline. If your data is broken, your experiment is useless.
- Don't forget to check if your metric is actually trackable. Some channels hide data.
- Don't assume yesterday's winner works today. Channels change fast.
- Don't let stakeholders push their pet experiment without a contract. Make them show the math.
- Don't wait for perfect data. A good enough contract beats no contract every time.
Your Win by Friday
By Friday, you'll have one experiment running that you know has the highest potential impact. You'll save at least 3 hours of debate. And you'll have a data contract template ready for next week's experiments. That's a win you can measure.