Ever wondered why the airlines don't require their check pilots to undergo psychological checks for suitability to be a check pilot? Answer: They wouldn't pass the tests
While I wholeheartedly agree on this about
some I can definitely say others would pass the test with
flying colours. If I count it up in my career its about 50/50. The bad 50 are the "fault" of the Manager standards/training checking. These are the peope that are accountable for this area. In some companies this is done exceptionally well (bullies weeded out quickly) and in others not.
What I find interesting is the fact that there is no requirement to have undergone any training in how to teach people.