I dont think so. I mean Grant and Meade, i think, would be easy for Jackson, niether one of them did anything really impressive, and certainly not on the level that Jackson did. Sherman is the only Union general id put on par with him.
Johnston, IMO, did alot of damage in not putting up a fight. He essentially got out manuervered half way through georgia without even putting up a fight. If Jackson was in command, he'd fight like a pit bull, much like Sherman himself. If Sherman did win, hed be pretty well battered at least and in no position to march to Savannah