Spend a lot of time during the interviews. That's the surest way to get rid of these kind of people. If you depend on your HR to hire for you then you WILL end

Spend a lot of time during the interviews. That's the surest way to get rid of these kind of people. If you depend on your HR to hire for you then you WILL end up with an unreliable and mediocre bunch of people. (My company has a HR team but I never ask them to find me candidates. I do all activities including resume filtering and pre-screening. As a result I have a much better group of people.)