About 8 million employees — roughly 5 percent of the U.S. workforce — hold second jobs. How you manage your part timers has an impact on teamwork, morale, and overall productivity.

An employee’s status of part time or full time should not affect your expectations of him or her. Part-time employees have to be just as flexible as full-time ones. Flexibility is a two-way street, though. Be careful not to be so demanding that you put part-timers in a position to have to blow off their other commitments to accommodate a hole in your schedule. When they’re forced to decide where their loyalty is strongest, it may not come out in your favor.

Remember that just because an employee is part-time, he or she still requires the same level of training as full-time employees. Include part-time employees in your re-training schedule, and be sure they are kept up to date on all policy and procedure updates.

When you have a star employee who also happens to be part-time, you’ll have to work harder to keep that employee at your business. Part-time work is easy to find, and good employees know they’re in demand. It doesn’t take a whole lot to tip the scales against you. Banning second jobs or a move to a competitor is unenforceable as a matter of law. It’s also likely to cast you in a bad light. Instead, focus on giving all your employees plenty of reasons to stay put. A positive way to improve turnover of part-time employees is to be the employer of choice. Let employees know the benefits you offer to part-timers, such as schedule adjustments and cross training.

Sometimes, your part-time employees may be also working at another business that is similar to yours. This can lead to additional challenges. While most safety and compliance procedures should be universal, there will be differences in other processes. When opposing operational standards come into play with part-time employees, keep an open mind and approach these issues as opportunities for you to learn other perspectives. That being said, though, stand your ground when you’re confident your procedures are the most effective.