Editor's note: There are more rumors making their rounds again as to who will be nominated as NASA administrator including one suggesting that Lori Garver, head of Obama's NASA transition team, would be the nominee. However our sources indicate that we should not put too much faith in recent rumors. So we'll just have to wait and see.
Even if a new administrator is nominated this week we know that acting administrator Christopher Scolese faces some tough decisions including resuming phased shutdown of shuttle operations on May 1. Once that process is started it will be difficult to add additional flights.