We've discussed Charles the Bold before, but I think we always come to the (IMO right) conclusion that by 1477, he was in a lot of trouble anyway. And he comes off less than impressively in history, alienating a lot of his neighbors, expanding rapidly, etc.
But let's give him a personality transplant. Instead of being Charles the Rash, he's Charles the Brilliant; as devious as the Spider King, as skilled in war as Henry V.
What is the optimal Burgundian strategy?