Please pardon this person who wastes too much of her time reading fiction and things that aren't even Civil War, but what exactly would Lee have been doing if he'd stayed loyal and accepted command of Union forces?
Would he have taken Winfield Scott's place pretty much immediately? If yes, would that have been before or after the Anaconda Plan was formulated by Scott?
Would he have commanded an Army of the Potomac that was constituted sooner and without McClellan?
Would he have commanded at Bull Run instead of McDowell? If yes and it turned out as badly as it did in real life, would he have been demoted and under a cloud because he was from Virginia?
In real life, Lee spent a lot of time fortifying the Richmond area, thus the nicknames Granny Lee and King of Spades. Would he have done the same for Washington or would his more aggressive temperament (compared to McClellan) have come to the fore sooner? I'm trying to understand how he'd balance Lincoln's desire to protect DC vs Lincoln's desire for the Army of the Potomac to get a move on and kick some Confederate tail. How does Lee get through that beginning mess to the point where the talents he showed in real life with the Army of Northern Virginia kick in for the Army of the Potomac?