You and your team are working on a parts-ordering app for plumbers to use. You’ve drafted personas and problem scenarios/JTBD. Now, you are setting up interviews for an upcoming design sprint to test your persona and problem/JTBD hypotheses. Which of the following should you try the most to avoid?

Correct. If you’re an internal consultant or otherwise have specific instructions to speak to the manager, that’s fine. But you want to focus your interviews on the actual individual users of your product. If possible, speak to them where they do their work so that you get a more realistic idea of who they are and how they work on a day-to-day basis.