What does "at least 10 years of experience in the field. " exactly mean?

Question

Top Creative Executive - Web

Establishes and directs the strategic long term goals, policies and procedures for an organization's creative activities. Determines the long-term systems needs and hardware acquisition to accomplish the organization's business objectives. Requires a bachelor's degree. May be expected to have an advanced degree in a related area and at least 10 years of experience in the field. Generally manages middle managers/directors. Relies on experience and judgment to plan and accomplish goals. Typically reports to a CEO or COO.

Answer 1

that means you have to have some past expperience in that field and workin in that field for ten years. In which you should already know the ups and downs.. simple..

Answer 2

at least 10 years of experience in the field means that applicants should have worked at least 10 years (consecutive or non-consecutive) in the field.  

They are looking for a highly experienced executive preferably with an advanced degree to perform the job functions listed.  

If you are interested in the job, you should have performed similar responsibilities for at least 10 years for consideration.

Answer 3

It means 10 years doing that sort of work, at ay company that does that sort of thing.