Teams beat individuals every time. And the most effective teams are made up of uniquely strong individuals working interdependently to complement and leverage each other’s strengths. So, interdependence is a good thing. Right? Certainly. But it comes at the cost of having to devote time to helping each other. As the size of the team grows, people spend more and more of their time servicing each other and less and less time focused on their own jobs. Break that cycle by adding a garbage collector to shield the rest of your group from the internal service requests.
Probably easiest to understand with an example. How about a sales team? One manager and four sales people. Hard to argue that we want the sales people spending as much of their time thinking about and interacting with their customers as possible; and we want the manager spending as much of their time directing and developing the sales people as possible..