The vacant post of second lieutenant was filled by a quick election.
Yes, a challenge without a vacant post to justify it.
She could not squeeze him into any of the vacant senior posts.
As you will see from the Who's who page we have two vacant posts on the committee.
At the moment half a dozen vacant posts are filled a year.
Many of the other vacant posts have not been filled.
Before the 1860s, the Senate considered most nominations without referring them to the committee holding jurisdiction over the vacant post.
National diplomats will be able to apply for published vacant posts.
In an open economy, however, vacant posts are immediately occupied.
The committee therefore knew her qualifications and for that reason the vacant post was not again advertised.