Our ability to deal with chaos depends on structures that have been developed before the chaos arrives. When the chaos arrives, it serves as "an abrupt and brutal audit: at a moment's notice, everything that was left unprepared becomes a complex problem and every weakness comes rushing to the forefront. The breech in the defences opened by crisis creates a sort of vacuum" <i>Pat Lagadec's comment about a brutal audit is found on p. 54 of his book Preventing Chaos in a Crisis, published in 1993 by McGraw-Hill.</i>