If the President managed to bring Mother Teresa back to life and appoint her to the job, the ‘Rats would find a way to demonize her and refuse to confirm her. It won’t matter who he appoints, unless possibly it’s Hillary (making warding off evil sign) herself.
If he appointed Ted Olson, he would make it through the Senate. No one would dare go after him viciously because he is too nice a guy and because his wife Barbara Olson was killed on one of the planes flying into the twin towers on 9/11. Plus Olson should be rewarded for years of good public service to the Pub party.