Well there's no 25 man roster anymore, but Jones was in Trachsel's spot. As I said though, due to Novoa, Gooz, and Prior being on the 60 day DL, any pitcher currently in the Cubs organization is "eligible" for the postseason. Trachsel(if he was chosen for a possible playoff game) would take the spot of one of these 60 day DLers. Now, I'm not sure but I believe there's been conflicting reports as to whether Pagan is on the 60 day DL. If he is, and doesn't come back this year, then any position player in the organization can make the roster.