No, he is very good at a few thing like scouting, planning and predicting the enemy. I remember a quote from Grand admiral Thrawn, “In the battle, the person who wins is not the person who has the most men but a person who is best prepared for the battle.” And my alternate general was clearly prepared for every single fight far more than Zhukov, he had the entire region stripped of all the resources (Basically using soviet terrain against them), that distracted and irritated the enemy. Then he used the terrain of Stalingard against Zhukov, ie heavily fortifying the enemy facing front and bombarding the volga river.
Till this, Zhukov might have expected. But Striking in the enemy’s rear while a good portion of units were in contact with the enemy’s front. That is what allowed him to win. And remember Zhukov would have totally been subjected to a degree of gurrila warfare on his way to Stalingard. Zhukov would simply not have the men to attack and feasible maintain the attack while defeating a enemy of 30,000 and 400 something tanks in the be rear. Zhukov is most famous for the siege of Leningrad, which was a defensive initiative. And defending is quite a bit easy than offensive as any reasonable person who is reasonable educated in siege warfare would tell you.
There must have also been other things that the best general in history would done, but I don’t even have the wildest idea what could have been done and best generals think out of box. He is like Grand Admiral Thrawn from Star Wars, and Hannibal Barca was just some who is closest to grand admiral in real history.