Different combinations of intellectual skills engender different types of leadership. Leaders vary in their memory skills, analytical skills, and practical skills. A leader who is particularly strong in memory skills but not in the other kinds of skills may have vast amounts of knowledge at his or her disposal but be unable to use the knowledge effectively. A leader who is particularly strong in analytical skills as well as memory skills may be able to retrieve information and analyze it effectively but unable to convince others that his or her analysis is correct. A leader who is strong in memory, analytical, and practical skills is most likely to be effective in influencing others. But, of course, there exist leaders who are strong in practical skills but not in memory and analytical skills. In conventional terms, they are shrewd but not smart. They may be effective in getting others to go along with them, but they may end up leading these others