Final answer:
In Fiedler's contingency model, highly favorable and highly unfavorable situations are best approached by a Task-oriented leader, who can provide clear directions and structures necessary in such conditions.
Step-by-step explanation:
In Fiedler's contingency model, both highly favorable and highly unfavorable leadership situations are best dealt with by a Task-oriented leader. Task-oriented leaders are efficient in such situations as they focus on the tasks that need to be accomplished, and provide clear directives and structures necessary in either a very favorable or unfavorable environment. On the other hand, relationship-oriented leaders may perform better in moderate conditions where the support and motivation of the team are crucial for achieving goals.
It is important to note that not all leadership styles work well with all follower types. Transactional leadership is another concept that relies heavily on supervision and organizational goals via rewards and punishments. Contrarily, transformational leadership encompasses leaders who are charismatic, inspirational, intellectually stimulating, and considerate, aiming at changing the organization.