How does a wheel go round? All the parts of the wheel need to be in place, otherwise it will not roll. No single part can successfully perform its mission without the help of the other parts of the wheel. The same is true for the Fire Company. The only way the firefighters can make their fundraisers and other projects go round, is to have their wheel complete and in place.
The volunteers use the diagram of a wheel to visualize their committees and the delegation of tasks when there is lots of work to be done. They use it to plan their fundraising dinners, the auction, and their educational events. The hub is where the upper management or several core leaders are located. That is the center of the wheel and thus, the center of the organizational pattern.
The center radiates out to the rim using spokes to support the rim. The spokes (leaders) are important strengths within the wheel that support individual tasks of the committee. Connected to each spoke is the rim. The rim is made up of individuals who have very specifically focused jobs to do.
This is what makes the wheel-type organizational pattern work: the spokes that are supported by the hub, support the people who make up the rim. In the end, they collectively make the wheel go round and the committees are successful in their work.