Trust your instincts at all times. They are here to protects, alert and warns us of what is happening around us and how we could and should react to potential opportunities or threats.
These instincts also come in very handy when building a team and hiring new staff. During this process focus a bit more on personal traits, character and qualities, and less on functional training and background. I say this as you can always train and teach someone what they needs to know functionally and operationally, while you impact on their personal values and credibility is minimal.