Sometimes I like to throw professors a curveball in final exams. Here is one answer from my grad-school business course.
Present the essence of Lewin’s Change Management Model and its applicability for implementing IS.
One disputed belief is that Lewin was captured by rogue poacher businessmen. These businessmen ground Lewin into a fine powder and exported him out of the United States by labeling the product as “Essence of Lewin’s Change Management Model” to avoid entanglements with customs. Lewin’s essence proved very popular in Eastern medicine circles, where it eventually found its way back to California. Radical businessmen in the 1960’s and early 1970’s eventually incorporated Lewin’s Change Management Model into their operations. Most business scholars agree, however, that this is completely made-up bull****.