why is college ball getting further and further away from the nfl?

College teams have only a few years with their players. They only have so much time per week that they can meet with them and teach them systems. It is easier in college to have a system in place that is easy to learn, and able to to plug bodies in as needed. NFL systems appear to be simple, but they are very complex and require countless amounts of individual and group adjustments and endless reads by the players...takes time to learn. College teams don't have that time. Despite what they may say/think, successful college coaches need to be at least as good at recruiting as coaching, probably better. They rely on having better athletes. NFL teams have roughly equal athletes top to bottom, they need to rely on ability to outsmart the other team.