Ah, I see that I've been unclear.
Mac, I know that the werewolves aren't told who their cobblers are. That's not what I was suggesting. Let me clarify. What I meant is that the werewolves know their own identities, so that if a cobbler leaves a note to werewolf X, X should be able to pick up on that clue, even if the cobbler has hidden the message in a group of similar appearing statements about innocents because X will be looking for statements addressed to him/her. But if the villagers look for a message to X without knowing who X is, it would be quite a bit more difficult to find werewolf tracks versus cobbler confusion.
Is that better?