There are many models for hiring. For IT, talent based hiring instead of skill based hiring would result in getting better candidates.
While the actual talents needed for a position depends on a variety of factors, this list at Gallup (from the book Now Discover Your Strengths) can help you zone in on the talents you would want to consider. Look at the position to be filled, and analyze what talents might be needed. Ask questions at the interview to elucidate the talents they might have. Another approach is to use assessment technologies.