As already noted, Anderson's major failing was day 2 at Gettysburg when portions of his division floundered in carrying out the en echelon attack against the Union line. (Although much of that failure can also be attributed to poor intelligence and oversight by both Lee and AP Hill). Conversely, Anderson had until then a generally good record as a division commander, and particularly during the furious Confederate counterattack at Chancellorsville on May 3rd. So despite Gettysburg, Anderson was a solid choice to take over command of the First Corps after Longstreet's wounding in the Wilderness. That seemed a smart move, as Anderson marched his corps expeditiously towards Spotsylvania Courthouse, thereby beating Grant to the important crossroads. Furthermore, his leadership throughout the Overland Campaign did not generate the type of opprobrium that Lee visited on the other corps commanders, Ewell and AP Hill. Anderson is unfortunately associated with the disaster at Saylor's Creek, although it's hard to discern what other recourse was open to the ANV on its last futile mission. Anderson was a modest, low-key commander, which sometimes was thought of as him being low-energy, a trait that did not sit well with the aggressive Lee and probably contributed to his lower historical profile.
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