According to the largest studies undertaken by Gallup Organization, talented people quit their companies because of their boss. The study surveyed over a million employees and 80,000 managers and was published in a book called "First Break All the Rules".
Look at your managers first if you have high turnover problem, write the author. So much money has been thrown at the challenge of keeping good people - in the form of better pay, better perks and better training -when, in the end, turnover is mostly a manager issue An employee's primary need has less to do with money, and more to do with how he's treated and how valued he feels. Much of this depends directly on the immediate manager. And yet, bad bosses seem to happen to good people everywhere.
A bad boss is possibly the worst, directly impacting the emotional health and productivity of employees. HR experts say that of all the abuses, employees find public miliation the most intolerable. The first time, an employee may not leave, but a thought has been planted. The second time, that thought gets strengthened. The third time, he starts looking for another job. When people cannot retort openly in anger, they do so by passive aggression. By digging their heels in and slowing down. By doing only what they are told to do and no more. ~
(Extracted from gallup.org)