Written for EO by Jessica Thiefels.  

Being a solopreneur is difficult. Not only are you responsible for day-to-day operations and deliverables, but you also play the role of marketer, sales person, and human resource manager—among many others. That’s why even the most seasoned entrepreneurs hire experts to help run their business.

If you’re an entrepreneur wearing many hats, and you feel like you’re heading toward burnout, it might be time to hire additional help. However, hiring the right people to help run your business is often easier said than done. One wrong hire could cost your business, or worse, permanently cripple it.

In fact, the average cost of one bad hire is almost $15,000, according to a survey by CareerBuilder. And it’s a common mistake: Nearly three in four employers say they’ve hired the wrong person for a position.