"The problem with Schmitt is that he things we should go to the Moon to mine He3. It is harder to use than the fuels being tested from Earth. This is hardly the kind of "practical" approach we need for a NASA administrator."

I agree.
I think I've made my opinion about mining He3, quite clear- it's a non-starter. It's wouldn't work even if the entire wealth of Earth was dumped into it.
One thing I like about Goldin is he seems to be open to new ideas- perhaps opened so much his brain falls out:)
I'm not sure what kind of person we should have instead as administrator.
Someone like Tito would be good (if only we could be so lucky). Or perhaps someone from military background. Alan Binder even though he understands FBC and favors mining water from the Moon, wouldn't be my first choice.
We need a good bureaucrat: rational, tough, and willing to take risks.