Also, a very good player could come out of a regular mutli player system and now even more so since they'll be doubling young player training.
That was part of my point; that most teams will use a multi-player training system, even when training NT players, as more players can be trained and more of the team improves at once. Training a single position seems completely counter-productive in anything but short-term applications.
Most of my concerns with making it worthwhile to win and promote are due to experiences in hattrick. Long term, it seems better to sit it out in lower divisions than to aim for DIII and above.
I agree that the HT system is flawed, but it seems BB has done a great job of making promotion a better option than squatting in a low division and attempting a long cup run. We should see in a few seasons how it's working.