Summary.
So much depends upon managers. For example, a Gallup study found that at least 70% of the variance in employee engagement scores is driven by who the boss is. This is disconcerting because the same research found that about 70% of people in management roles are not well equipped for the job. This state of affairs is hurting not just employee engagement and quality of life, but also corporate performance.
Read more on Analytics and data science or related topics Managerial behavior, Managing people, Organizational culture and Personal productivity