The most important task o the Product development is the organization of a team.
Generally speaking from the automotive perspective, following is the structure.

CEO - President - Vice President - General Managers - Project Managers - Product manager - Engineering managers - VPI/ NPI Managers - Sr. Design Engineers ( Design lead) - Design Engineers.

Most of the structure remains same at least to the point of Product Managers, where it may differ based on the type of product under consideration. If you are looking at new blades for a Fan, you need not change the whole design of the fan. You would focus on the blades, like size, shape, angle, material and thickness of the blade.
The remaining team for the motor and adapter and electrical casing would remain the same.

Advantages of naming a team:
It helps in the process of assigning responsibilities of the project to specific individuals who can then add it to their daily activity for timely delivery of work to Project Management Specialist. It helps in the process of accountability and achieving work efficiency. It also helps in the process of balancing work load among team members and helps in coordinating work among team members.

Mostly the team for a product development will consist of the following:


Product Managers:
Roles:

Project Management Specialist:
Roles:

Engineering Managers:
Roles:

Reliability Engineers:
Roles:

Sr. Quality Engineers:
Roles:

Program Cordinators: APQP Engineers
Roles:

Finance:
Roles:

Marketing:
Roles:

NPI Managers:
Roles:

Validation Engineers:(Experts)
Roles:

Technical Specialists:
Roles:

Sr. Design Engineers:
Roles:


Design Engineers:
Roles


Manufacturing Engineers:
Roles:


Operations Engineers ( Production Planners)
Roles:


SUPPLY CHAIN:

Global Purchasing: (Corporate Buyers)/ Inventory Control:
Roles:

Supplier sourcing:
Roles: