The only question that matters is "Can you do the job?" If you don't hear this question or for those doing the interviewing, if you don't ask this question, then there is something seriously wrong. All of the rest is pretty much a waste of time at least until after that key item is settled. With that out of the way, then it is time to worry about how well someone may or may not fit in etc (something that can be allowed for or fixed as may be). And whatever else might come to mind. But first and foremost everyone should realize that doing the job is the single most important item.