Duty: Memoirs of a Dean at War?

It’s actually Duty: Memoirs of a Secretary at War, but couldn’t Gates (former dean of the Bush School at Texas A&M) have written that book instead?

Here’s the blurb:

Before Robert M. Gates received a call from the White House in 2006, he thought he’d left Washington politics behind: after working for six presidents in both the CIA and the National Security Council, he was happy in his role as president of Texas A&M University. But when he was asked to help a nation mired in two wars and to aid the troops doing the fighting, he answered what he felt was the call of duty. Now, in this unsparing memoir, meticulously fair in its assessments, he takes us behind the scenes of his nearly five years as a secretary at war: the battles with Congress, the two presidents he served, the military itself, and the vast Pentagon bureaucracy; his efforts to help Bush turn the tide in Iraq; his role as a guiding, and often dissenting, voice for Obama; the ardent devotion to and love for American soldiers—his “heroes”—he developed on the job.

I’m considering it as a book for one of my classes, so any insight is most welcome!