I think Gibson balanced the questions because the world was tuned in to see how an ABC commentator would behave, shortly after we heard about the infamous "ABC-Has-a-Grave-Obligation-to-Help-Poor-Widdle-John-Kerry" Memo.
From the article:
Bush should have been prepared to answer that kind of question better than "I appointed a few losers, but let's not name them."
I enjoyed hearing Bush answer that way. He even could have added, "I left a few of Clinton's losers in office too long."
I thought the same thing when I heard his answer to that. That was one of his bigger mistakes, for sure.