According to Derek Goold at the St. Louis Post-Dispatch, somebody at Baseball America has confirmed that the Pirates will top BA's farm system rankings when they come out later this month. Woohoo!
I'll add the obvious here: This is just an opinion and it means nothing unless they translate it into major league success, as Cam Bonifay found out. But it's one more reason for optimism to see such a ranking from a respected authority that lacks our fan biases.
UPDATE: And here's the confirmation on the BA website. Hoka hey!!