Watchful Eyes would probably benefit from departmentalization by Customer type .
Explanation:
The departmentalization applies to the hierarchical structure and partnership between the company and different departments and management roles. As a company expands, its divisions are expanded and more site-units are formed, introducing more management layers.
LA Gear is also an example of a company utilizing departmentalization of the product. The system is based on its wide range of products like female footwear etc. Departmentalization of the operation – Grouping of product/service processes or customer flow behaviour
Departmental business services–Grouping on the level of specific clients or consumer forms, Jobs may be classified by the group of customers the company represents. I assume that each organization's customers have a specific set of problems and criteria which specialists can better fulfill.