Final answer:
J&J is using a matrix organizational system to assign individuals from various departments to work together on client accounts, combining skills from across the company to manage accounts effectively.
Step-by-step explanation:
J&J is an advertising agency that handles its clients by forming teams within the agency that are composed of individuals from various departments. This approach to organizing their work is known as a matrix organizational system.
In a matrix structure, an individual has a primary report-to boss while also working for one or more managers, typically on projects. This model aims to combine both functional and product-based departmentalization, which includes a blend of skills and specialties from across the company to effectively manage accounts.