We could always just do what we used to do in earlier times and use the rank = job method.
Yaaaawwwnnnn.... ever heard of
Wg Cdr Guy Gibson, OC 617
Sqn? Or
Gp Capt Leonard Cheshire,
Stn Cdr RAF Marston Moor? Both examples of 'the way it was done in earlier times'. Indeed Cheshire went on to command 617 Sqn as a Gp Capt!
Most modern Sqns are many times bigger (in both aircraft and numbers of personnel) than the sqns which were commanded by Sqn Ldrs in the early days of the RAF. In fact, many modern RAF Sqns are broadly similar in size to WW2-era bomber sqns, which were typically commanded by..... Wg Cdrs!