With just one “uniform” strand you’d instantly get away from the dickheads who do the “I’m an NCO / Officer (delete as required) and that’s not my job”.
You would have everyone start as a CI and have CIs purely as instructors in whatever field(s) they desire. I would put a minimum of 2 years on this.
If after 2 years people want to do more management things they can do courses to fully prepare them for this and while still instructing as previously, they do the squadron management side. As they get more experience they can become squadron commanders and with more experience, if they wish, Wing Staff. Say a bit like work where people can stay where they are or become supervisors, managers etc but without any formal like we have with the pseudo military connotations. Do away with the rank structure as that imposes a limiting factor, ie I’m an NCO therefore I’m not going to be a CO or I’m an Officer and I’m not going to be doing drill instruction etc. Introduce specialisms rather than having as we do now jacks of all trades. For instance someone could get into H&S do the courses and become a Wing or Region H&S manager or similarly with AT, Sports, training whatever, where currently despite being the best for the job, as they are an NCO they wouldn’t be considered for a Wing or higher role, because they weren’t an officer.
Our current uniform system allows some people who are perfectly capable to hide behind chevrons and crowns or just gives extras hoops and hurdles for those who want to do a bit more. With only one strand we are all the same and decide our own path.
You could simplify uniform by having adult instructor badges and all wearing SD hats or ‘chip bags’ with the Air Cadet “beret badge”.
Through all of this people can remain as CIs.