I honestly don't see the NFL developing a minor league. The NFL doesn't have the Capital needed to compete with the Big Boys and their deep pockets. One can't imagine the Dallas Cowboys being able to pay anywhere close to the salaries UT can throw at a young kid.
And if a high school kid has a choice between the Cleveland Browns and a peanut salary or OSU and free tats, cars and unreported non taxable generous income, well, it’s not even close.