Listening to SiriusNFL this morning and they had Brian Billick on. They asked him about analytics...and he responds that he not only USED them back in 1992, he wrote about it in his book. I am sure those analytics were much more rudimentary, but still, it's not as new as some think.
...and this thought that it is all numbers is wrong. It incorporates every single aspect of the scouting reports, including behavior, legal issues, systems played in, coaching, interview success....all of that is put in and considered. It isn't some put in the numbers, hit a button, and a score pops out. It shows positives and negatives of each candidate, and the final decision is made by people who review the reports developed.