BluePeterBadge
So are you saying that no-one from the admin branch was involved in JPA at all? Was it all aircrew, engineers, ATC, suppliers, etc who did it the work on a replacement admin system? Stop abdicating responsibility. The admin branch is to blame - maybe not you personally or those at a lower level but still adminers. You at the sharp end in PSF (or whatever it is called now) happen to be the interface or the public face, so get on with it. Don't hide behind 'Its not my fault' and try providing answers. It's not the fault of the girl at the customer service desk at a supermarket or even the pax staff when an ac is delayed because of bad wx but they still take the flak.
Just take responsibility for your branch.
If JPA was designed and implemented by non-admin branches I apologise, but that would show what the RAF thinks of its admin staff by taking this change away from them.