The books below are the best and latest scholarly look at the battles of Nashville, Chickamauga, and Murfressboro.

Nashville.
"Embrace an Angry Wind: The Confederacy's Last Hurrah-Spring Hill, Franklin, and Nashville" by Wiley Sword.

Chickamauga.
"This Terrible Sound: The Battle of Chickamauga" by Peter Cozzens.
"Chickamauga and Chattanooga: The Battles that Doomed the Confederacy" John Bower.

Murfreesboro.
"No Better Place to Die: The Battle of Stones River" by Peter Cozzens.

The book below is a good book that covers the strategic issues and poor military and political leadership that directly impacted the AoT.

"The Politics of Command: Factions and Ideas in Confederate Strategy" by Thomas Lawrence Connelly and Archer Jones. Respectfully,

Gerald D. Hodge, Jr.
M.A. Military History - Civil War Concentration
Research - Preservation
Historian: 39th Georgia Volunteer Infantry Regiment