...it's still my contention that 'Lyss could be a vindictive S O B, especially when he had been "upstaged" by someone ( especially when that someone was or had been his subordinate ), like McClernand here and Rosecrans at Corinth.
I've read a couple places detailing similarities between Lee and Grant, despite how different they seem at first. And it's kind of an eye-opener! One thing - both are considered genuinely modest men and that's so, but neither was an aw-shucks kind of guy. They were ambitious and they knew what they could do. Both removed, in their own subtle ways, people who were obstacles, and not all of it was for the good of the service!