Could Secretary of State Clinton disagree with President Obama without undermining him?

The New York Times reports that Hillary Clinton has said yes. She will be President Barack Obama's secretary of state. The Clinton selection will occasion another 10 rounds of discussion about the wisdom of no-drama Obama bringing all the Clinton troubles into his house. Will Hillary Clinton undermine him to keep her political options open? What about Bill's flare for controversy? And how's that first meeting going to go between Hillary Clinton and Obama's White House Counsel Greg Craig, who claimed during the campaign that Clinton exaggerated her foreign-policy experience? [ more ... ] (link)