The McKinsey Engagement

I am just reading this book called "The McKinsey Engagement" and come across the Rules of Engagement which is quite interesting:

Generally, high-level roles that people play on teams boil down to two categories: 

Process and Content

Process Roles

 - "Big picture person." This team member focuses on the overall story of the project and the presentation

 - "Deliverables driver." This person keeps track of the time and the status of deliverables.

- "Communicator." This person is the one primary point of contact with clients.

- "Touchy feely." This is the person who continuously checks the morale of the team.

Content Roles

- "Functional expert." People in this role concentrate on strategy, marketing, finance, operations, or some other area

- "Relationship guru." This team member focuses on the relationship with external constituents.

- "Voice of experience." This is someone who has worked on a similar project in the past.