Functional structure
Organizes people by what they do: engineering, marketing, operations, finance. This is the starting point for nearly every organization. Almost all companies begin as functional structures, and many stay that way as long as they operate a single line of business. The logic is grouping by expertise, so everyone in a discipline sits together under one leader, works to common standards, and follows one chain of authority. A company organizes this way when its strategy depends on depth in one or more specialty areas.

Example: how Apple organizes at the enterprise level.
Simplified and based on publicly available information.
- Increased knowledge sharing within functions
- Ability to build depth and specialization, attracting and developing experts who speak the same language
- Leverage with vendors
- Economies of scale
- Standardization of processes and procedures
- Difficult to manage diverse product and service lines
- Cross-functional processes cause contention
- Different departments have different priorities; the customer’s interest can get overlooked
- Integration tends to occur only at the leadership team level


