In any other year, your musings might lead you to, say, Gov. Susana Martinez of New Mexico, a former prosecutor who checks all of those boxes, has bipartisan support in her home state and enjoys shooting handguns to boot.

But in the world after Sarah Palin and “Game Change,” the chances of Mitt Romney or anyone else choosing a first-term governor lacking a national brand name and experience are greatly diminished. However good a fit she might be on paper, Ms. Martinez probably bears too many surface similarities to Ms. Palin to get a serious look, as The New Republic and others have pointed out…

“One of the mistakes we made in the Palin process was one of assumptions,” said Steve Schmidt, one of the McCain aides who guided the process. “We immediately made the assumption that anyone with ‘Governor’ next to her name has a base level of knowledge of history and policy that in a post-Palin world it isn’t necessarily safe to assume.”