I recall being a Junior Officer in a battalion that had returned from Germany on a Berlin tour, which was an infamously indolent posting replete with many opportunities to develop raging alcohol and tobacco habits. I joined the unit after it had returned to the UK.
If there were such a term as 'Culture Shift' at the time, we certainly experienced it.
The new CO and RSM, both very professional, experienced, battle tested/ decorated and truly fierce soldiers, drove us like rented mules.
The regimental nick was full most of the time, as I discovered when visiting the (terrified of the Provost Staff) prisoners.
Training was 'from the ground up' relentless including battle PT for everyone on a daily basis, and a 10 miler per week carrying 60lb loads and platoon weapons through the local mountains. Fall out of that and you're on remedial PTI, in you scarce spare time, with the unit PTI staff.
We spent alot of field time on battle drills, ranges, and all arms type cooperation training. Drill, dress and deportment standards were painstakingly enforced with extras being freely awarded to any Officer, NCO or soldier who slacked off. Everyone cut about purposefully, arms shoulder high, paying compliments etc as per the usual custom.
Being paratroopers, the dreaded balloon appeared on a regular basis and we reconnected with the basics of effective and safe jumping, leading to a series of airborne exercises under truly daunting conditions.
The weak or wavering were given the chance to get their act together and, if they failed, were kicked out. Every day on parade there were a couple of faces missing, and the message was hoisted in.
Not all was doom and gloom, of course, and there were various sports day type events, unit and inter-service competitions, and adventure training activities, along with a healthy Mess social life.
By the end of about 6 months we were a finely tuned machine. At the time I recall it felt like hell on earth, of course. But the harsh but fair approach accomplished a 180 degree culture change which, I believe, successfully set the stage for subsequent battalion successes in Northern Ireland, as well as a 5 year long stint as the Army's AMF (L) battalion in Norway etc.
Maybe the CAF could use a bit of that 'traditional' culture shift magic.