I wouldn’t use “Band of Brothers” as an example, because the airborne divisions WERE pulled back to England for a period before they were committed to Operation Market Garden (the jump on Holland). I think Frank is referring to other division size units which stayed at or near the front while drawing replacements from the rear area manpower pools.
Yes.
While some units (such as the 1st Infantry Division) were in constant combat during the war, individuals were not only rotated into, but also out of those units.
I don’t know about the Army, but I served with a China Marine who had fought in every battle thet the Marines were in during WW2. And then, he survived the march from the Chosin.
I guess it’s no rest for the weary. I hope that Lew Hirschman has finally found some rest.
Really, any history of the war that I've read, though, talks about high attrition rates in the combat units.