When the organization is the member and not the actual individual, you lose valuable information when the bundle admin leaves and you have to put in a new bundle admin. The year the organization became a member and other valuable information should live with the organization name and not with the person. Since there is such a high turnover, only the individuals would change. Maybe you could create a feature where you link and unlink people to organizations as they move from job to job and preserve the historical info with the organization. Thank you!