It's not all about practice. That is incorrect and not the point. There are many factors that contribute to someones success, talent is one of them but not the only one. Opportunities plays a big role as well.

Take 2 kids of equal size and natural talent. One grows up in Texas with a family of football lovers. The other grows up in nowheresville Nevada to a family that played some sports but not main focus. Texas kid gets involved with football early people see his skills/ potential and therefore he is placed on the best teams. He gets the best coaching and training. He then ends up on the best high school team which have the best connections to D1 programs. He gets noticed by some big D1 one schools, other schools follow suit. His team is stacked and they win a lot of games against good competition. The offers start to roll in. Recruiting services see the buzz he is generating and the offers he is getting and give him the 4 or 5 star ranking. He commits to top program, gets great training, has great success.

Nevada kid doesn't start to play football till high school. It's some little high school without much of a program. He is playing the wrong position but since he is the best player he has to do everything. His school is not on many radars and his coaches don't have experience with the recruiting game. He does not develop much but it is clear he has some skills so gets a few offers, like to UNR, UNLV, and a few others. Recruiting sites either don't evaluate him of give him 3 stars due to size and speed but not much performance.

Remember, same size and natural abilities. If given the choice you take Texas kid, he has been groomed and proven to be a player. Less risk and higher chance of being impact player but that does not mean Nevada kid can't play. He just needs a lot of work to get up to speed and trained to use his skill set. Put in the right situation Nevada kid can excel and become a key playmaker as much as Texas kid. He just needs the direction and work ethic to make it happen. It's more of a long shot but possible.

There are freak athletes, like Taysom Hill, that are just on another level then everybody else but they are outliers. Certain teams like Alabama can attract these freaks and have an unusual number of them but I do believe the talent gap for most college football teams is not that large. It mostly has to do with connections, finding the right athletes, and coaching, coaching, coaching, and some more good coaching.

There are players out there. BYU is not going to land the big recruits but they can find raw talent, coach it up, and be competitive. It's a lot harder to do it that way but teams have done it. Ask Chris Petersen if it's possible.