If your company has a higher employee turnover rate than others in your industry, the problem may lie with you or other supervisors.
People call in sick a lot.
The more people call in sick, the more likely it is they're unhappy working in your company. You're always the last to know. Workers don't like to go to bad bosses with any problems. They try to work it out amongst themselves, and let the boss think all is well. Your employees fight a lot.