Caaron... Interesting that you resurrected this thread almost exactly a year after it ended!
In the past year a lot of these ideas have remained in my subconscious, and I've thought about them. Here are a few related but new thoughts to add to the mix:
Nashville song writers write songs they hope will be picked up by performers who are currently hot. There is a limited number of hot groups and an almost unlimited number of song writers competing for their attention... and therein lies the statistical improbability of winning the Nashville lottery.
But if you look at the astronomical number of live bands... most of which play covers because they know how to play instruments but they don't know how to write songs... it seems to me that if someone found a way to offer their songs in this arena, the likelihood of sales would increase dramatically.
In the past, the "industry" had the only system in place for marketing and distributing songs... but now the internet has made it possible for any band to promote themselves globally... and many are doing exactly that.
If somebody got good at placing songs with talented unknowns who were diligent about making a name for themselves, it could be good for everybody. The bands would get better songs than they would write themselves, and the writers would get access to a much larger marketplace.