Because Outside off Jimmy Johnson, it really doesn't work. There are a few other exceptions, Tom Coughlin for example, was the head coach at Boston College from 91-93 (spent 84-90 moving up the ranks on NFL teams). Pete Carroll is another, but I would argue he was an NFL guy who settled for a college coaching job. Jim Harbaugh comes to mind as well, but having been a starting NFL QB while some of the players were growing up (and an OK one to boot), he had more credibility than most. And of course, everyone around here's favorite, Barry Switzer, who won a SB, albeit with a team who won back to back SBs, and then had everything around him unwind. The only college coach fired with in the last 10 years or so who imo could've had a lot of success in the Pros would've been Nick Saban. I think had the Alabama job not become available, he would've built a better Miami team, assuming ownership gave him the time needed to recover from the Daunte Cullpepper fiasco. But looking at this current group, I wonder what teams saw in Mike Schiano and Chip Kelly. I can understand the appreciation for Schiano's old school approach to coaching, but with out some skins on the wall, it just won't cut it in the pros. Players won't go for it, and even Tom Coughlin had to change up a bit to get the most from a Giants team that struggled but wound up winning 2 super bowls. Chip Kelly imo, isn't even as good as Steve Spurrier. No National Championships, no Heisman winners, unlike Spurrier and......no recruiting scandal as he went to the pros. Doug Marrone is another curious hire, but I think the Buffalo job isn't that attractive and the proximity to Syracuse played a major role in his hiring. I guess I just don't see why GMs continue to go down this path.