sentences:  His time as head of the company is used as a case study at Harvard Business School; Steven Fenster, a professor at Harvard University, has been quoted as labeling Kazarian as "a mad genius" with "incredible" business acumen.According to an article by "The Wall Street Journal", employees at the firm viewed him as an "overbearing boss whose frequent harangues and erratic, autocratic behavior made their lives miserable".He often called top managers to "crisis meetings" at late hours in the night and encouraged inter-departmental competition.