[marcosdumay]

Adding any action to check if you are on the right track helps. Scrum doesn't have any, it assumes the development is subservient to the PO, and the PO is that flawless being that does everything perfectly, even when nobody tells him he has to do it. It also and adds a lot of confusing tasks that distract the PO from this one main goal.

Thus, the odds of a team knowing where they are going reduces drastically if they start doing scrum.