I also like Longstreet, always have. For this rating system to only give him 2.5 starts while a boob like Burnside gets 2 doesn't make any sense to me. I doubt that General Lee would have retained Longstreet in high position had he not had faith in his capabilities. From a recent paper (
https://www.americancivilwar.asn.au/meet/2001_02_mtg_longstreet.pdf) that came to my attention:
"In contrast to other officers whose performance did not improve over the period of the War, Longstreet learned from his initial mistakes. The Longstreet who commanded at Chickamauga (1863) and the Wilderness (1864) was much better than was the Longstreet at Seven Pines in 1862. By 1864,
Longstreet was the outstanding corps commander of the Confederacy and certainly as good as any of the corps commanders on the Union side."
I also recommend Longstreet's own book, From Manassas to Appomattox (
https://gutenberg.org/files/38418/38418-h/38418-h.htm). Lots of interesting information and an amusing description of some long range artillery shots which I've posted before in the Book Forum (one involving D H Hill and another regarding a rather unfortunate US Topographical Engineer).