Interviews aren't just about talent and ability. Some fairly abstract concepts are important too. How the individual fits within the team is vital. You might h

Interviews aren't just about talent and ability. Some fairly abstract concepts are important too. How the individual fits within the team is vital. You might have one of the smartest people on the planet but if they can't effectively communicate or understand and work within the cultural norms of the team you're going to have a problem. These norms and practices vary and shift between teams, countries, and even within the same team over time. For example hiring a Linus Torvalds for an intermediate, client facing, political position, is probably going to have poor results. These are difficult things to test for and are as much a decider of job performance as raw knowledge and technical experience.