“In general, software engineering teams and IT departments seemed to be at the mercy of other groups who would negotiate, cajole, intimidate, and overrule even the most defensible and objectively derived plans. Even plans based on thorough analysis and backed by years of historical data were vulnerable. Most teams, which had neither a thorough analysis method nor any historical data, were powerless at the hands of others who would push them to commit to unknown (and often completely unreasonable) deliverables.”
―
David J. Anderson,
Kanban