Randi seems a little unclear on Intelligent Design as well. Intelligent Design and theistic evolution aren't closely related but he seems to think they are the same thing. Theistic evolution doesn't purport to be scientific theory and doesn't require rejecting any particular evidence. Basically, it says evolution happened, but that God directed it. It does nto attempt to claim this is provable. Intelligent Design, on the other hand, claims that evolution could not have happened on its own and that this is provable and everything therefore must be the work of an intelligent designer. I'm not sure if there's some definitive hypothesis about how exactly the intelligent designer did it, though, but many ID believers reject evolution completely. In short, one can believe either one, or both, or neither, so they aren't really the same thing.