I think as it stands BB has three problems:
1) motivating new teams to stay in the very first weeks
I agree. It´s one thing to get people to try the game, an entirely different matter to get them to stay.
First of we need to understand that not all new players have previous experience from theese kind of games. Many at least of the current batch of top managers had that kind experience and since the basic principles are pretty much the same its not that difficult to get into a new game.
I remember when had my first start with HT i struggled even with the excellent newbie introduction there. If not for a friend of mine who was really into the game i probably wouldnt have got a real understanding of it.
I´m a hardcore soccerfan and in that sport my current game of choice is sokker. They have the exact same problem as BB (in my eyes at least) in not being able to hold on to new players and a lack of proper learning program for newbies.
Apart from that i have another example of a simple thing that should be easier:
I recently (couple of months ago) got a mate of mine to play BB, i was helping him out and told him to check the forums when i noticed that you have to search to find the national forum and the national help forum. (if i remember correctly)
Those really should pop up by default.
The help forum really should be availible through the standings page or something so its easy to spot. To new players its far more important than the division forum as there likely isnt much activity there anyway, at least it is so in my country.
(if this has changed lately please disregard my post)