If you go by what a school's players do in the pros to determine a position U, which school's running backs have gained the most yards in the pros? The answer might surprise you.
https://johnbaranowski.wordpress.com/2020/03/10/which-school-is-running-back-u/
https://johnbaranowski.wordpress.com/2020/03/10/which-school-is-running-back-u/