My rate wasn't prestigeous enough for Academy types. No shipboard service to speak of. Our officers in the 70's were mostly adminstrative types with degrees in Poly Sci, Accounting, who knows but they were not techincal wizards and when you're working 80-90 hours a week working with sound physics, have a few technical skills would be a plus.
About the time I seperated, the Navy finally figured it out and started promoting from within and taking E-6, E-7's and E-8's and making them LDO's. A bunch of my old buddies mustanged into the leadership rolls that made things much easier to deal with. No longer did you have to take some 23 year old girl with an accounting degree and try and get them to understand what the deep sound channel axis was or identify an Alpha running at 30 knots under the ice cap. You had seasoned analysts running the operations and commands.
One friend of mine started E-1, did 34 years and retired in '07 as an O-6.