We nicked the design for the jerrycan in 1941 from... the Jerries (the clue is in the name).
IIRC, the Spitfire had teething troubles pre-war, the 4 engined Lancaster only came into being because the 2 engined Manchester was a right 'horlicks', Kestrel / Harrier also had a long and difficult birth.
Goes with the territory for any major change programme. All four major change elements need to be sorted:
People
Organisation
Technology
Information
From the outside, AH within 16 AA Bde seems to be a readily deployable asset. We'll find out soon enough next year, I'm sure.