Davis was a capable commander and showed his skills in the Mexican-American War. Although Commander-in-Chief of the CSA, he was smart enough to leave the military decisions to his generals, like Lee. Lee, of course, had a spotless record at West Point; Davis, not so. Davis was court-martialed during his first year at West Point ("
He capped it off that summer by managing to get himself court-martialled for being caught - visibly intoxiated, it might be added - inside Benny Haven's tavern, a notorious local dive that was strictly off limits to cadets." Woodworth, S.E.). During his second year he was placed under arrest for his part in the Eggnog Riot (
https://en.wikipedia.org/wiki/Eggnog_riot) although no charges were filed against him on that occasion.
I can't defend the claim that "
Jefferson Davis was America's most famous military expert [after Scott]". That just doesn't seem right in view of the way Lee, and others, were regarded at the time. Still, I regard Davis as a man of high intelligence. His
The Rise and Fall of the Confederate Government (
https://www.gutenberg.org/files/19831/19831-h/19831-h.htm) remains the most cogent argument I have seen to explain succession. It's also interesting to see the main events of the war written from his unique perspective. 51% gave it 4/5 or 5/5 in reviews on
goodreads (16% gave it 1 or 2).