So charge him with a crime already and we can get on with this removing-tenure business.

Except you can't - because he didn't violate international nor domestic law. He never waterboarded anyone, nor did he order the waterboarding of anyone.

He worked on legal justifications for the use of torture, which is not an area of international law that's well defined. He didn't make policy nor law, he spun law so that it fit existing policy.

I won't disagree that what he has done is despicable, but what exactly would you charge him with that would actually stick?

He will be classified as a criminal when and if the courts convict him as one. Until then what he did is irrelevant to his tenure due to the concerns raised by potatolicious.