The psychologist Kurt Lewin observed that 'there is nothing so practical as a good theory' — but he also gave product managers a sharper tool: force field analysis. Before your next roadmap decision, don't just list what could go right. Map the forces actively driving change against the forces resisting it. Lewin found that reducing resistance is almost always more powerful than amplifying pressure. That stuck feature request might not need a bigger champion; it might need one blocking assumption quietly removed.

Think of a product decision that keeps stalling — what is one restraining force you've been treating as fixed that might actually be movable?

Drawing from Modern Psychology / Field Theory — Kurt Lewin (Field Theory in Social Science, 1951)