A guy with 4 years under his belt is light years behind a kid right out of high school. And no one goes to watch those games.
This league simply won't get enough good players to get an audience. No audience= no money= no league.
If there was an amazing amount of kids talented enough to play that couldn't stay in college but are still disciplined enough to play on a team, then I'd say there may be a chance. Not gonna happen, though. Take it to the bank. I'd bet they don't play one real season like they are proposing