[Leaf]

Originally Posted by Moonraker

I don't believe the wolves tracked the Company from Mordor.

Well, nobody suggested that?!

Originally Posted by Moonraker

they stumbled on them by luck, whilst at the same time following orders to snuff out lands that the Company may pass.

Can you back this assumption up with textual evidence? It´s highly unlikely that those wolves "stumbled on them by luck". Hollin was under the observation of Sauron´s servants and there are several instances in the text that can confirm this. We have the lack of birds and other small animals which is noted by Aragorn. He takes this as a bad sign:

Originally Posted by Aragorn, The fellowship of the ring, Book II: The ring goes south

But I have a sense of watchfulness, and of fear, that I have never had here before.

Then there are the flocks of Crebain scouting over Hollin and Aragorn concludes:

Originally Posted by Aragorn, The fellowship of the ring, Book II: The ring goes south

Hollin is no longer wholesome for us: it is being watched.

And we have a strange shadow which passes over the stars. It was felt by Frodo and Gandalf, rather than seen. This was the earliest encouter with a Nazgul on a fellbeast!