Final answer:
A T-shaped person is someone who has a primary area of expertise but also possesses a broad range of skills and knowledge to help other team members.
Step-by-step explanation:
The person described in the question is known as a T-shaped person. A T-shaped person is someone who has a primary area of expertise, represented by the vertical bar of the 'T', but also possesses a broad range of skills and knowledge, represented by the horizontal bar of the 'T'. This allows them to effectively collaborate and assist their team members in various areas, even if it is not their primary role.
For example, a software developer who is also knowledgeable in project management, UX design, and quality assurance, can provide support and guidance to team members in these areas when needed, in addition to their main development tasks.