I typed up an official email but proboards won't let me send another league-wide one until tomorrow. Here is the text:
"There have been some questions about how we should handle unowned prospects that hit AA during the season.
Last year this wasn't an issue because Yahoo didn't have a lot of prospects in the system, they only had the top tier guys. When an out of system got called up he got added to the system and automatically hit waivers, usually after his first MLB game. This took care of the issue itself and their was no gap in our rules.
This year they have hundreds of prospects of all different significances though. One notable example is CJ Edwards, who is currently unowned and has not hit AA, but he might start the season in AA (or hit the level at some point soon).
Here is the official rule: The status of unowned prospects is determined by what minor league level they maxed out at last season. If an unowned prospect only hit A+ (or lower) last year, then they can't be added in Yahoo even if they hit AA during the year.
They can, however, be added if they get called up to the MLB. This can happen as soon as the MLB team officially calls them up, adding them to the 25 man roster.
If an unowned prospect hit AA last year then they can be added to your big league roster at any time.
So if a player did not hit AA last year then the only way to add him to your roster is through the rule 4 draft in June!
This line in the sand makes guys who have hit AA last year like Eddie Butler available in the rule 5 draft in the spring, and it keeps guys who haven't hit AA like CJ Edwards as June draft bait.
Due to Yahoo's new player database depth, we had to implement this rule. And since it is a necessary new rule and not a rule change, we've decided not to vote on it. I also think that it's fairly inconsequential but in a minor way, for the best interest of the league, which is why I'm just making it so.
If you have any questions please direct your emails to Northof49, owner of BALCO Pharm Team, blank@rogers.com"