If a team exceeds the timebox of any Scrum Event occassionally does it mean they are not following Scrum?
If a team uses more than 10% of their capacity for backlog refinement then are they following Scrum?
If a team has members referring to each other as developer or tester because of their skills, even though they are aware that the only title in the Development Team is Developer, then are they following Scrum?
If we don't use velocity as a metric, does it mean we're not following Scrum?