Should Managers Attend Retrospectives?

TL; DR: Should Managers Attend Retrospectives?

There are plenty of failure possibilities with Scrum. Given that Scrum is a framework with a reasonable yet short “manual,” this effect should not surprise anyone. A classic discussion is whether it is appropriate that (line) managers attend the Retrospectives of the Scrum team. Probably, making their attendance a regular habit — or even a requirement — is not a good idea. However, what about managers that occasionally attend a Retrospective? Moreover, what if the (line) manager is also a team member?

Join me and delve into the how and when of managers attending Retrospectives in less than two minutes.
Should Managers Attend Retrospectives?