" In place of maps, whiteboards began to appear in our headquarters. Soon they were everywhere. Standing around them, markers in hand, we thought out loud, diagramming what we knew, what we suspected, and what we did not know. We covered the bright white surfaces with multicolored words and drawings, erased, and then covered again. We did not draw static geographic features; we drew mutable relationships—the connections between things rather than the things themselves. "

― Stanley McChrystal , Team of Teams: New Rules of Engagement for a Complex World