1. Uses experience and skills to provide you with recommendations and advise. The implementation of the recommendations may be performed by a consultant but is more often better performed by the company staff.
2. Gathers information for analysis.
3. Consultants bust use their detachment from the organization as a source for objectivity in their analysis.
4. Works with managers to develop solutions.

Should the consultant remain on-site?

Advantages easier access to their expertise observe all the hours being worked

Disadvantages cost associated with working full-time if a consultant is only working when they are at your worksite, then you need to get a new consultant. Consultants should be able to work independently of the client.