Formulating fantasy football rankings is not a one-off task. Drafters must stay open to new research and information changing perceptions through the preseason.
Adjusting August rankings is not always as simple as crossing off Derrius Guice. Managers must keep track of injuries and projected depth charts to properly assess each player's fluctuating stock. Those who successfully manage this task will develop a sizable advantage over anyone consulting a now-outdated magazine printed in July.
While reacting to preseason results is far from foolproof, those games can occasionally sway a position battle or foreshadow a team's intended usage patterns.