Though the objective of a leader to lead a team and co-ordinate for a successful execution but the interaction of a leader with team matters most to achieve any goal. The execution of any task successfully depends upon the effectiveness of a leader.
What are the key qualities of effective leaders? The ultimate measure of leader effectiveness is the performance of the leader’s team or organization, particularly vis-à-vis competitors. Leadership is a resource for the group, and effective leaders enable a group to outperform other groups. While the same personality and ability traits described above help leaders become more effective — they are not just advantageous for emergence — the best leaders also show higher levels of integrity, which enables them to create a fair and just culture in their teams and organizations. In addition, effective leaders are generally more emotionally intelligent, which enables them to stay calm under pressure and have better people skills. Conversely, narcissistic leaders are more prone to behaving in unethical ways, which is likely to harm their teams.
Source : HBR
Leadership style is largely dependent on personality. Ambitious, thick-skinned leaders tend to be more entrepreneurial, so they are focused on growth and innovation. Curious, sociable, and sensitive leaders tend to be more charismatic, though charisma often reflects dark side traits, such as narcissism and psychopathy. Studies also highlight gender differences in leadership styles, with men being more transactional and women more transformational. However, gender roles are best understood as a psychological and normally distributed variable, as people differ in masculinity and femininity regardless of their biological sex.
Leadership evolved over millions of years, enabling us to function as group-living animals. It is therefore unlikely that the core foundations of leadership will change. That said, the specific skills and qualities that enable leaders and their groups to adapt to the world are certainly somewhat context dependent. For example, just as physical strength mattered more, and intellectual ability less, in the past, it is conceivable that human differentiators such as curiosity, empathy, and creativity will become more important in a world of ever-growing technological dependence and ubiquitous artificial intelligence.
In short, the science of leadership is well established. There is no real need to advance it in order to improve real-world practices. We should focus instead on applying what we already know, and ignoring what we think we know that isn’t true.