Or why you need proper product management: it requires skills and time. Otherwise it's just botched and product gets developed in "firefighting mode" all the time. This article is a good primer on a few technics for grooming the product backlog.

Excellent take from Ron Jeffries about the current state of the Scrum industry. So many certified Scrum Masters that it's not fun anymore and likely useless... if not outright harmful. That's in part why I always refused to be certified. This kind of schemes tend to lead to such abuses.