Peter Drucker

== Criticism ==
''The Wall Street Journal'' researched several of his lectures in 1987 and reported that he was sometimes loose with the facts. Drucker was off the mark, for example, when he told an audience that the English language was the official language for all employees at Japan's [[Mitsui]] trading company. Drucker defended himself: "I use anecdotes to make a point, not to write history."

Also, while Drucker was known for his prescience, he was not always correct in his forecasts. He predicted, for instance, that the United States' financial center would shift from New York to Washington.<ref>"Peter Drucker, Leading Management Guru, Dies at 95," ''Bloomberg'', November 11, 2005.</ref>{{Update inline|date=November 2023|reason=This may need to be revised as there have been more financial decisions made in Washington D.C. in more recent times. See the M1 stock chart from 2010 to current date}}

Others maintain that one of Drucker's core concepts, "[[management by objectives]]," is flawed and has never really been proven to work effectively. Critic Dale Krueger said that the system is difficult to implement and that companies often wind up overemphasizing control, as opposed to fostering creativity, to meet their goals.<ref>Krueger, Dale. ''Strategic Management and Management by Objectives'', Small Business Advancement National Center, 1994.</ref>

Drucker's classic work, ''[[Concept of the Corporation]]'', criticized [[General Motors]] while it was considered the most successful corporation in the world. Many of GM's executives considered Drucker [[wikt:persona non grata#Noun|persona non grata]] for a long time afterward. Although [[Alfred P. Sloan]] refrained from personal hostility toward Drucker, he considered Drucker's critiques of GM's management to be "dead wrong".<ref name="Drucker_1990_new_foreword">Drucker, Peter. Introduction, pp. v–vi, in Sloan, Alfred P. (1964), McDonald, John, ed., ''My Years with General Motors'', Garden City, New York: Doubleday, {{LCCN|64011306}}, {{OCLC|802024}}. {{ISBN|978-0385042352}}</ref>