At the time of the Battle of the Pellanor, the staff at Dol Guldur were no doubt busy in Lothlorien. As for the Lieutenant of Morgul, my first impression was that he was Nazgul, but I tend to agree with Legolas. He probably was not. There is certainly no evidence that he was, and Tolkien would not (I think) have omitted this fact if he was indeed a Nazgul.
By the way, Do Balrogs have wings and could they fly? Was Tom Bombadil a Maia? How did Gandalf recover his staff after Moria? Why didn't the Eagles just fly Frodo from Rivendell to Mount Doom and have done? What was the real power of the Silmarils? and if you can fit it in, just how old was the Mouth of Sauron, and where did he come from?
Sorry, couldn't resist.
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Yet all the while I sit and think of times there were before,
I listen for returning feet and voices at the door.
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