I believe I understand your point. But I don't agree.
If we know the "possible" range of levels in the draft, and the statistic probability of each level, then, we can decide whether to take this chance or not.
If all statistics are known, it 'd be too easy to put the numbers into ideal formula's which changes this basketbal sim into a mathematician contest. Maybe this is a bit extreme formulated, but that is what BB's want to avoid.
Succesfully dealing with uncertainties is a quality of a good manager. Offcourse there's a lot of counting involved, but it would be a pity if it was the only task left.
For the same reason the formulas of the game engine remain a mystery, which makes it harder/impossible to obtain exact predictions of future games.
Information of draft levels can be found after every draft on the TL, the reactions on the forums (in Belgium forums we have a lucky/unlucky thread for example) and in discussion threads when people are comparing their drafts.
The new manager has obtained for his first draft already some scouting reports, which allows him to pick not completely random. If the new player is smart, he'll decides whether or not to invest after his first draft when there is more info about it to obtain.
Climbing the BB-mountain. Destination: the top.