Pruitt spent just one year on the staff in Tallahassee, though it ended in a national championship. Prior to that role, he spent three years as Alabama's director of player development from 2007-09 and as defensive backs coach from 2010-12. He's fairly well accomplished for someone with only four years' experience of coaching in I-A, but that's still not a terribly long resume on the highest level of college coaching. He's also well known as a top recruiter.
According to ESPN's Mark Schlabach, Pruitt will be making $850,000 per year in Athens. That figure is a substantial raise over his $540,000 salary at FSU. Presumably FSU would have paid him more to stay, but unless he had some kind of personal conflicts with others on the staff, it would appear right now that UGA simply outbid what Florida State was willing to pay. (Note: this might not have been about money) Pruitt walks into a nice situation at Georgia, where he will have as many as 10 defensive starters returning.