I think there's a tacit assumption that the article is discussing Opening Day, and therefore who is on the 40-man roster right now. Adding Burdi now would mean dropping somebody - which wouldn't be the end of the world, but it's not going to happen like that so why factor it in. The wild card for me is that currently the 40-man has 22 pitchers and 18 position players. That suggests to me there is room for a trade of some type in late March. It could be a minor swap to get rid of perceived dead wood (*cough*Nolasco*cough*), or it could be big. A big trade could change every discussion here, so you can only go with what you know now, but it's still there in the background.