Retention [and recruitment] is a key challenge for most HR practitioners as covered by McKinsey's 'War for Talent'. To be honest with you FRIs, in my experience, do not work. Staff come and staff go - that's life so why increase your financial cost for the risk of no/minimal return? One of the most effective ways to retain staff is to ensure that you have a mutually agreeable physchological contract in place, and therein lies the problem. You need to understand the mindset of the staff you are trying to keep [and this is an age old problem in every workplace, not just the RAF], in this case you are talking of junior administrators who were quite likely born post 1980 [aka the Millennials]. To that end, does the RAF meet the desires of these individuals, I suspect not, but to give you an idea:
As a line manager of a millennial do you:
Provide structure - Define work assignments and success factors;
Provide leadership & guidance - Millennials want to look up to you, learn from you and receive daily feedback from you. They deserve and want your very best investment in time of their success. They want to know the big picture but do you treat them like mushrooms?;
Encourage the millennial's 'can-do' attitude - encourage, don't squash or contain them;
Millennial's are up for challenge and change - They seek ever-changing tasks within their work. Don't bore them, ignore them or dismiss their contribution;
Provide a relaxed, employee-centred workplace - Millennials want to to enjoy their work and workplace.
Millennials whilst loyal will always keep their options open so, as intimated above, the reason that your junior administrators don't want to invest their time in the RAF is probably because their line managers are not investing the time in them.
DT_Xtremez_25: