This thread originally started out discussing the shortage of Navs, apparently mainly on the Tornado fleet.
What's the solution? Simple, work the few you have left harder, make them do back to back detachments, stop them PVRing (already being done), don't allow them any time off for personal or professional development, AT, etc....
Finally, when the Tornado fleet does start to fold and you don't need them any more, make them redundant under the rules introduced by the NEM as thanks for their efforts.
Isn't that what the RAF (sorry, didn't mean to be biased), no MOD, normally do in this sort of situation?
As an aside, I don't care if it's WSOps who can wlak on water becoming WSOs, or recruiting WSOs off the high street for the RN to train, you aren't going to put anyone without prior experience into the back seat of a GR4 to go on operations very quickly. Best hope the SDSR solves the problem for you - it normally does......