One of the great transformational leaders in history, Otto von Bismarck, became largely incremental and status quo-oriented after achieving the unification of Germany under Prussian direction. Likewise, Franklin Delano Roosevelt’s foreign-policy objectives and style were modest and incremental in his first presidential term, but became transformational in 1938 when he decided that Adolf Hitler represented an existential threat.
很多领导然在职业生涯中会改变他们的目标和风格。历史上最伟大的变革型（transformational）领袖——俾斯麦在实现普鲁士领导下的德国统一后变得渐进（incremental）而现实导向。类似地，富兰克林·罗斯福的外交政策目标和风格在其第一个任期内是温和而渐进的，但在1938年认定希特勒代表了外部威胁后成为变革型。