The biggest advantages are know how, previous experience, ability to deal with ambiguity and the ability to create value in a very short period of time. Too often clients hire people and call them 'consultants' just because they are on a contract. There's a huge difference between contractors and consultants IMO. Contractors are usually brought in to fill staff augmentation roles for a period of time. Think - I need a Project Manager to manage project 'xyz' for 3 months. They need only have generic PM skills in many cases and the ability to execute. True consultants are brought in because of their expertise in a specific functional area or areas. They bring knowledge to the table which isn't available in house and can both execute the tasks at hand as well as guide the client and provide advice towards decisions which need to be made now and in the future. By bringing in additional subject matter expertise there's a ty...
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