Any manager can do well in an expanding market.
Don't expect smart people to listen to you without proof.
Zero defects is a super highway going down the tube.
Management of outcomes may not be any more than a skill. It does not require knowledge.
Nothing happens without personal transformation.
Managers don't like giving appraisals, and employees don't like getting them. Perhaps they're not liked because both parties suspect what the evidence has proved for decades: Traditional performance appraisals don't work.