Mistake 8: Rushing the Hire
OK, the perfect candidate may not exist. That doesn't mean you should rush to hire just anyone. Take your time. Think about what it's going to cost in time and money to hire and train someone, only to find that she's not up to the job. You could end up having to repeat the whole process.
Interview twice if you have to and, if necessary, arrange for a freelance or external contractor to cover the role until you've got the best person that you can.