Evidence team session

Before the session

Read Days 51, 55 and 58 (about five minutes each), or Module 6 on the cheat sheet.

The 30 minutes

1. 0–5 minOpen

   Quick round: one thing we all believe about our customers that we've never checked.

2. 5–15 minDiscuss three days
   • Day 51: Turn opinions into testable bets.Which opinion in our current work could we turn into a hypothesis that could be proven wrong?
   • Day 55: Decide when to stop before you start.For the work we're doing now, what result would make us stop, and who would make that call?
   • Day 58: Numbers say what. People say why.Where do we lean only on numbers, or only on stories, and what are we missing as a result?
3. 15–25 minExercise: Write the bet

   Pick one belief from the opener and write it with the Day 51 template: we believe this change, for these customers, will produce this outcome, and we'll know when this number moves this much by this date. Then add a kill criterion with a metric, threshold, timebox and decider.

4. 25–30 minAction for the week

   Each person gathers one piece of evidence for or against the bet this week: a number or a conversation.

   Agree the team rule: “If it can't fail, it isn't a test.”