The answer to the question is: We have to trust that the Wing boards won’t pass someone who doesn’t demonstrate the required maturity, knowledge, and skills to be appointed to Acting Sergeant (that’s hit and miss); that ATF will provide the required basic training (that’s more easily monitored); and that on returning from ATF Wings encourage the individuals to properly pursue Continuous Professional Development (that’s even more hit and miss).
Bad Sgts do exist and I think generally it’s because either:
a. They never started with the right mindset and shouldn’t have been appointed in the first place; or,
b. Because they came back from one week at ATF believing that is all they need to do and have done little to improve themselves since.
There will also be those who are keen to develop but are not given the proper guidance from their superiors. I don’t consider those to be “bad” Sgts, but they may be unaware of what’s required.
Generally I’ve found that those who genuinely want to improve will find their way. Though we really should have a better Corps-wide system in place to support and develop our Staff.