What if you don’t like your new boss? Most people who quit their job are quitting a PERSON, not the company or the job. If you do not click with the person who is your Manager, you are probably setting yourself up for failure. Also, consider the fact that this person is probably on their BEST behavior during the interview process. They normally don’t get better, they get worse!
Save yourself and the company time and money, by withdrawing yourself from consideration. This is no different than someone who thinks they can change someone after they get married. Unfortunately, what you see is what you get and people don’t change. You don’t have to LOVE your boss, but you do have to like them! After all, your workplace is where you’re going to spend most of your waking hours.