I think the reason Tanguay and others have no info of Baby staying is because Ainge's best position if for the Celtics to appear to not want BBD, thus encouraging the lowest offer and resulting in the easiest match.
If DA really didn't care, he would probably be calling press conferences telling us all how "clutch he was in relief of KG, and OMG what ice in his veins. We need him and we'll match any offer." That would help drive up the price and screw over some other team's cap.
whatever, I am psyched by today's C's news and just covered in optimism.
Go Celts!