Thank you for sharing - logistics is given then 'step-child treatment' far too often outside of professional circles.
I didn't read it all the way through yet, but I skimmed it; the author seems to have done a good job at first glance. Lots of citations (a promising sign), and I noted that he mentioned things such as the Louisiana Maneuvers - historical footnotes that were VERY important to the US entry into the war but are, like logistics, often overlooked (for those who have not read about them, the Louisiana Maneuvers was, among other things, what reassured Churchill that the US Army was capable of fighting a war despite a chronic lack of funding).
The paper seems to do a good job of showing how Operation Torch was very much "on the job training" for the US armed forces with some painful lessons learned early on, but with a fighting organization that emerged which was capable of successfully taking the fight to the European continent.