Does the emperor loose sight of his plan?
In the OT the empire is not so orderly like in the begining. The Storm Troopers are no longer cloned from a single source, there is a lot of contempt in the officers and you can't help but think that the Emperor is not really in charge. The Empire is looseing major battles to the small band of Rebels, like the first DS. You would think that if the Empire could wipe out the Jedi they coul surely wipe out the Rebelion.