There's this management mythology that: - Worker bees will stay because they're clueless and don't have the initiative to keep moving. - Pressure from on high

There's this management mythology that: - Worker bees will stay because they're clueless and don't have the initiative to keep moving. - Pressure from on high to fudge performance reviews downwards to "save the company money." (At where my mom worked, a middle manager blanket reduced all subordinate reviews down because BS: "people are overly generous.") If you want least turnover / most morale / most productivity, pick people whom can grow the most and grow them until they no longer can keep up or find something else. Develop people (training, mentoring, promotions, bonuses, raises, perks, etc.), don't just consume them as static widgets to fill a hole.