.....not a lot of the civvy staff at SULTAN are going to relocate, and they can't find replacements.
That's always the problem with over-contractorisation and reliance on increasingly large numbers of civilian staff - they can't just be given a posting notice to somewhere hundreds of miles away and be expected to get on with it.
Tough luck, MoD - didn't you realise that?
Hardly much of a surprise that a civilian workforce cosily ensconced on the sunny South Coast doesn't feel overly keen at the prospect of moving to the Land of No Vowels, is it?