The RGFC didn't retreat in 91. Saddam offerred them up as the sacrafice to save the rest of his army (Medina Ridge and 73 Eastings).
As for momentum, this would have to become a classic but Gen Tommy Franks plan to drive to Baghdad while leaving significant hostiles in rear areas (ie the Iraqi 51st Infantry Division in Basra). The bold (and somewhat idiotic) moves by 3-7Cav. And the 187BCT in northern Iraq.
It would be studied and frankly, too bold for my nerves.