Anyone that has played sports in Jr High and HS remembers the kid that was bigger and more talented than everyone else. He dominated 7th - 9th grade, better in every way.
By 11th-12th grade, everyone had physically caught up to him, and superstar was no longer anything special - might not even be playing for one reason or another.
Same goes for college recruiting. You recruit a kid that is 16 years old and someone rated a 5 star. Plays varsity as a freshman or soph, physical beyond his years. Some of them get to college and they find out they are just another guy.
KF recruits kids that WANT to get better - bigger, stronger, faster. Kids that are willing to take care of themselves to achieve results. Hard work in the off season, film study, drills, etc. Strive to hit the goals for measurables that have been established. He looks for kids with an edge - wanting to be as good as he can be - and not just talk. Because if you don't get better, you will get beat.
If a 5 star guy is ready to do everything he can to improve, I'd love to have him. One that just does whatever is required so he can play football on Saturday - pass.