I think it’s useful to get a well-rounded view of a candidate by introducing them to one or two others in the organization, as there are often issues that get overlooked or questions that might have been asked when working alone. So it’s helpful to have others meet the candidate, and quite reasonable to expect them to return for a second meeting for further discussion.
But I believe that extending the process beyond this can lead to losing candidate interest, and frankly, doesn’t show respect for the time and effort required by candidates to attend interviews for potential opportunities.
Highly successful senior executives are in demand and there are lots of organizations all vying for their interest, so if you want to attract them to yours, you should try to keep this in mind.