Gents
I very much doubt it's a gunnery officer that is ascendant. I think you'll find it's a non-naval service or CS type that can't quite understand why more than one type of asset/system is required in "capability world".
As for DD/FF offered up, they're unfortunately irrelevant if you don't have the capital ships to back them up. As I've said before, either keep the three maritime pillars, or home defence with SSK, OPV & MCMV and the equivalent for RAF and army. Nothing else makes strategic or financial sense.