Shamrock organization

The shamrock leaf shape is a symbolic representation of an organization with three types of workforce, having a main body and connected lobes that together form a whole.
The term was invented by Irish academic and management author/philosopher Charles Handy. He believed that people were the most important resource within any organisation, unlike F.W. Taylor who believed in tall hierarchical structures where workers were closely supervised. Handy believed in meeting the needs of workers through job enrichment. He did not believe in jobs for life but contracts or short-term jobs were more appropriate. He suggested that non-essential work should be contracted to specialist people who could work more productively and efficiently. In his book "The Age of Unreason" he uses the shamrock design to demonstrate three types of people linked to the organisation with different expectations and managed and rewarded differently. This style is known as "The Shamrock Flourish".
Shamrock organizations have an organizational structure with three distinct parts. The first part, or leaf, represents the core staff of the organization. They are likely to be highly trained professionals who form the senior management. The second leaf consists of the contractual fringe and may include individuals who once worked for the organization but now supply services to it. These individuals operate within broad guidelines set down by the organization but have a high degree of flexibility and discretionary powers. The third leaf describes the consultancy (professional/high-tech). These workers are sufficiently close enough to the organization to feel a degree of commitment to it, ensuring they maintain a high standard of work.
Handy defines the shamrock organisation as a 'core of essential executives and workers supported by outside contractors and part-time help'. This structure permits the buying-in of services as needed, with consequent reductions in overhead costs.