The document discusses the case of Rob Parson, a successful banker at Morgan Stanley, who increased the firm's market share significantly but failed to build strong relationships with colleagues. It highlights the conflict between Parson's individualistic approach and the firm's emphasis on teamwork and corporate culture, which jeopardized his potential promotion. The narrative explores the implications of performance evaluations and feedback mechanisms within the company, ultimately presenting a dilemma for his superior, Paul Nasr, regarding Parson's promotion amidst negative peer feedback.