Most people can fit in anywhere in a team. This is most true of the young who can modify their roles and the way they work to suit the business. However there are a couple of team members who have to be found independently and cannot as a rule be sourced from existing team members.
These are the ‘Completer Finishers’ and the ‘Idea Generators’.
Both of these roles are jobs which need introverts, so don’t expect one of your sales people to be able to do them.
Completer Finishers are excellent at completing the job and worry constantly about what might go wrong. They are only at ease when they have checked every detail and made sure everything has been done and nothing has overlooked. They can however become bullies as some team members need to be pushed to complete work and meet deadlines.
The Idea Generators are sometimes also called Plants and prefer to operate at some distance from the other members of the team and use their imagination to find unorthodox solutions to complex problems. They are the most intelligent members of their team and are much more concerned with major issues than with details. They may miss the details entirely and can upset other members of the team by belittling current work. However it is the Idea Generators who create companies and launch new products.
You will see companies that do this on the Top 20 page at https://gibli.com/top-20 because they have found the critical the ‘Completer Finishers’ and the ‘Idea Generators’.