Regarding Moss, I have to throw out a different perspective which was covered in the Sirius XM Radio thread...
Rogers & Brown mentioned that Randy has that "switch" where he can put on a burst when needed to create separation. It's interesting to note the importance of this burst because it's something you cannot account for by lining up deeper than normal. That's why a 4.2 burner with average skills can be shut down/limited because you can take away what he's good at.
That's probably why Randy was such a monster years ago. He always had that burst, just more of it than now.
I'm sure he will still be effective. That one handed TD against Revis and the Jets from '09 season was pretty impressive.