Ron Brownstein of the LA Times wrote today...
although I found it in the Baltimore Sun:
Early speculation about who might serve as Kerry's secretary of state centers mostly on candidates who fit that description: Richard Holbrooke and Sandy Berger, former top officials in the Clinton administration; Sen. Joseph R. Biden Jr., a Delaware Democrat, the ranking Democrat on the Foreign Relations Committee; and more distantly, Sen. Chuck Hagel, a Nebraska Republican, whose commitment to traditional alliances places him much closer to the center of thinking in the Democratic than the Republican Party.
First the McCain talk, now the Hagel talk. Campaignwise, very smart in showing that a Kerry Administration would be more nonpartisan in nature, and also hinting that Republicans would gladly work with Kerry (instead of Bush). It's only a matter of time before the Lugar talk starts.