Final answer:
The four key components of organization and structure in family therapy are Boundaries, Power, Rules, and Communication patterns, whereas 'Expectations' is not one of these specific components.
Step-by-step explanation:
The four key components of organization and structure in family therapy are Boundaries, Power, Rules, and Communication patterns. These components play a significant role in understanding and facilitating change within the family dynamics during therapy. 'Expectations' is not specifically listed as one of the core components according to most models of family therapy, though it is certainly an important aspect that can influence the other four components.