“Joe will be back,” said Hank Steinbrenner yesterday. And that can mean only one thing: The Joe Girardi Job Watch is on. Whenever an owner goes out of his way to note that a manager, already under contract, won’t be fired, the storm clouds gather. Girardi hasn’t been the godsend people thought he would be, but the injuries weren’t his fault. He deserves to be back in 2009 and shouldn’t be questioned yet.