Lowell Lindstrom writes, on the Extreme Programming (XP) mailinglist regarding large XP projects, that “As a definition of large scale, we have seen teams approaching 60–70 people that don’t require significant adaptation of the XP practices. Those are organizations whose culture reinforces the XP values [Communication, Simplicity, Feedback, and Courage] as opposed to challenging them. In organizations whose cultures don’t align with XP’s values, large scale might be as small as 20 or less.”