In any case, Burnside was mentioned earlier.
Hmm… I’ll discuss Joe Johnson and Hood.
Johnson wasn’t really one of the greater commanders in the Civil War, although he wasn’t actually half bad. He tended to be quite conservative in tactics, and partly I don’t think he could possibly believe the incredibly swings of fortune the tides of battle might bring. By that, I mean he simply couldn’t do the kinds of insane things Lee did - but to be fair, Lee should have been horribly destroyed by his own tactics. It was mostly the grotesque and ongoing incompetence of Union commanders in the east which allowed him to succeed.*
*To wit, Lee repeatedly divided his troops in the face of overwhelming enemy firepower. Had McClellan, Burnside, or Hood been ready and willing, Lee would have been obliterated and Riuchmond taken. All three men passed, and when Grant finally arrived, Lee stopped taking such chances. Recognizing Grant was no fool (Lee had commended Grant in the Mexican-American War), he switched over to mostly defensive tactics and forced everything into attrition mode.
He had previously failed to relieve Vicksburg, which put him back in Confederate President Jefferson Davis’s bad graces. However, at the time Johnson had been faced with trying to outmanuever Sherman, in boggy country, on the offensive, with Grant behind. And Sherman alone had more men than Johnson.
Once Johnson was mostly free of Richmond with a command in Georgia, he did a credible job holding back Sherman. He built impressive field fortifications and hammered Sherman hard once or twice. The best he could do was to hold back the tide and keepo SHerman from finally breaking into Atlanta. However, Davis grew afraid that Johnson meant to abandon Atlanta (Johnson apparently intended to shorten its lines and manuver around Sherman to keep the man from advancing or besieging). He removed Johnson and appointed Hood.
Well, this was not an inspired choice, but Davis wanted a fighter, and Hood was that. Unfortunately, his previous battles had left Hood crippled (but no less full of fight), and possibly addicted to opiates. Lee even warned Davis that Hood was not a wise choice.
Although Sherman was a little surprised that Hood came out fighting so hard, and there were some sharp fights, Hood came out the worst in all of them. His plans weren’t exactly bad, but he wanted his soldiers sent straight at the enemy. In fact, he got pissed, because his soldiers weren’t aggressive enough in attacking field fortifications. Y’know, the same “strategy” which failed almost every time it was tried without ample support and preparations.
So, Sherman basically backed off, marched around, and cut Hood off totally. Hood was so full of himself he just assumed he had won that Sherman’s move totally surprised him, and he ignomiously fled. Later, as Sherman began his march to the sea and then into South and North Carolina, Hood repsonded by moving north to Nashville.
This was, politely, a bad move. General Thomas, on the Union side, intitally worried everyone by retreating. In reality, he was just drawing Hood on. Finally, as Hood neared Nashville, Thomas hammered him like a frog on an anvil, and Hood’s command evaporated. Neither Hood not his army ever presented a threat again. Hood has worn his command out totally with futile attacks, and Thmas just smashed him on the Right.