The 5 reasons XP can’t scale and what to do about them

XP seems to be a good method for small teams to develop high-power software system. There are concerns about the ability of the method to scale to scopes any larger than 12 developers. It only takes a small numb er of changes in the set of practices comprising XP to make it into a method scaleable to quite large scope. Indeed, modifying 5 practices and adding in a few new ones resolves the issues.