The more immediate issue should be decoupling the need for an 'op tick' for officers promotions so we can get HQ's back to a manageable level.
During Op Herrick, in theatre HQ's were overrun with SO2's, the good ones of whom were happily doing the job of a Cpl, and the bad ones dreaming up work to get their name on the minutes.
Before it starts - yes, some were doing a great job in HQ's and some were there to keep pace, rankwise, with other nations. Many were there because it became a de facto staff college module.