I may get to on a long rant. Good idea in theory...
22 years total service, 14 active, sea counter ten years and one day. Yeah, I miss my sea pay. If you are on a ship you will do many things that are not your job. For example, I started life as an airframer. Metal, fiberglass, we screw, we nut, we bolt. Get to a carrier first thing I learn is cleaning, second thing is working in a high volume dining facility.(did this again at the end of my last four, but as the head cookie cop this time. I am uniquely qualified to wash dishes for a thousand people all by myself.)
Once you survive the messdecks, time to be a firefighter. By the time I left the carrier I was the guy to lead two hose teams, numerous schools, tons of training hours. My second sea tour I went to get more fire schools and was second in command of a forty person repair locker. Mmm, that ate some admin time.
In between that, on both ships my happy little division owned 70-80 spaces. Passageways, work shops, troop berthing, airwing shops, you name it. So got to spend plenty of time as the handyman. Oh, and a year of my life as the planned maintenance scheduler which I stupidly allowed to be found out by my second ship...
So here's where it gets dumb. First, rate mergers. I was trained as a metalsmith. They merged my rate with my hydraulic sisters. Presto, I owned a hyd shop. Ok, I can figure this out, but do I have a school for that test bench??? Or do we merge a rate and have a poor sap with 18 years in the surface community suddenly land in aviation? Happens all the time. Or do we invent a retention program that moves people out of their job if they want to stay in? Sure do, I lost an aircraft mechanic with three hard to get schools so he could be a fireman full time. Seen the Navy spend six months on an electronic school and convert the guy to a boiler tech.
Next, the sheer volume of everything you have to learn when you come to a ship is sheerly voluminous. :) And of course being the Navy you have to have a sign off from a qualified trainer for every task line item. Thick books worth, now endless computers worth. If everyone actually did or was proficient in every line item well Davy Jones still wouldn't be fully qualified. But fear not, quals are a huge metric in performance evals, so guess what happens? And that mentality transfers over to zero bs get you killed fields like shipboard firefighters or aviation QA, another place I spent most of my career. I left my reserve command still not full systems quality assurance because I refused to let people sign off stuff I didn't know cold. I was fine with flight controls and all my other stuff, engines were easy, but the rest was a bit tough to learn one weekend a month. Believe me, I caught *expletive deleted*it for that. The sheer volume of tasks ensures everyone is good at nothing. But just in case they are we will send them to a new place in three years!
And finally, minimally manned ships are fine right up until a not minimally manned ship starts poking holes in yours.
A lot of this is an exercise in looks good on paper that someone in the puzzle palace got a really spiffy fitrep for writing.