Here's why this won't work. Nobody cares about minor league sports. Minor league franchises in baseball, hockey and the NBA are financially supported by the major league franchises tied to them. Without the NFL to support it, a minor league would fold immediately. Yeah, paying players 50 grand a year sounds great but with what money? Plus coaches, officials, facilities, insurance and tons of other costs that you have to factor in. What minor league sport has any type of TV audience to get revenue from? Even if they somehow sell tickets, that money isn't nearly enough to cover operating expenses. They would have to bank on college football fans dropping their allegiances to their teams to follow random minor leaguers. Not gonna happen.