“Consultants are a waste of money” and similar statements are heard not uncommonly. An article about the value of consulting that initially appeared in the September 1982 issue of Harvard Business Review addresses the value of consulting and helps managers understand the broader range of purposes that consulting can help achieve. We encourage our existing and new clients to glance over this article and let us know their opinion about the “hierarchy of consulting purposes”.
https://hbr.org/1982/09/consulting-is-more-than-giving-advice