By James A. Barnes, National Journal © National Journal Group Inc. Monday, March 31, 2008 If potential presidents can be judged by how they run their campaigns, then how they staff those efforts may provide important clues to the kinds of talent they would recruit for their administrations. Because Democratic front-runner Barack Obama is a relative newcomer to national politics, an examination of his inner circle of political and policy advisers offers new windows into his thinking, leadership style, and sources of expertise. The Democratic front-runner's team has a relatively shallow bench, but its political achievements thus far are quite...