It's a school. There are two deputy heads. One was applying for jobs in other schools in this recruitment cycle, was unsuccessful.
The school (part of a group of schools) have decided she will probably leave next year
and have randomly brought in a third deputy head.
No advertising, and she hasn't left, and won't even be applying until next February/march in the next recruitment cycle.
Is this allowed? There are at least 4/5 members of staff that would have wanted the chance to apply for a new deputy head position and this blokes just been shipped in from another school.