I think Jacket had the better argument by pointing out that many "analysts" at places like Bama are actually there to get around the NCAA 11 coach limit. Iow, they aren't actually analysts at all; they're assistant coaches. You can get away with this (so far) if you have the money.
Being an analyst, however, is - or should be - a different job. Mind, I don't know much about how advanced analytics are in football, but on baseball teams that are all in on analytics, analysts pick and advise the players, tell the managers how to use them, and outline general strategy. The managers do what they are told within limited discretion; the amount differs from team to team. I've never heard that it works this way in football. If you have a head coach with an analytical bent - Paul, for instance - you can see something like the kind of analysis you see in baseball. But most coaches want to run the whole show and pay attention to their assistants, kinda. The analysts are there to help with recruiting, the only area of football I can see where analysis is heavily used.
Obviously, I should look into this further. Right now, I'm going on speculation based on what I see. That's always dangerous.