If you have an open position, rehiring a former employee, known as a boomerang, may seem like the easy answer because they already know the company culture, business nuances, and people. There are a number of reasons why they might not be the right person for the job. Managers should ask themselves five questions before hiring a former employee. Many employees are looking for a new job. Maybe they need to leave their current company to advance their career, or maybe they want a bigger challenge. If they leave your company and realize the new opportunity isn't as good as they thought, or if they left years ago and now want to come back, what would you do? Should you hire them?