save the company money: for example, a specialist tax-consultant who saves the company 20% on its taxes, and only charges 10% in fees, enables the company to net a 10% savings. A portion of professional services in demand for clients are simply not necessary to retain in house, as they may be sporadic in nature, at which a consultant offers a reduction in payroll for the client.

In the UK government sector, since 2010 the Cabinet Office has