Leo Varadkar (Dublin West, Fine Gael) | Oireachtas source

Just because people are on a panel, it does not mean they are available or want to take up a post. Often, people on panels, when offered a job, either are no longer available or they do not want the job or to move to the location of the job. It is not the case that just because people are on the panel they will necessarily be willing to take up a post.