While he tends to draw a lot of lightning here on FR, few American generals have understood that point as well as Sherman (with the possible exception of Patton). Say what you will about Lincoln, once he had found generals that were willing to slug it out, he let them do their jobs, which, at least in terms of military/political relationships, made Lincoln an exceptional CinC.
Once Lincoln was gone, it was pretty much back to politics as usual. After successfully prosecuting the campaigns in GA and the Carolinas bringing the war to a close, there were those in DC (i.e. Stanton, et al) who wanted to try Sherman for treason for offering overly generous terms of surrender to the Johnston.
Patton...now THERE was a general.
My mother’s hero...she who endured Nazi-occupied France...