Futures: Two Non-College Prospects
I still may be reaching with my comparison for Duncan, but based on what I’ve seen his comparable upside is within the range of Heath Miller: not fast enough to be an every-down, vertical threat, but a fluid athlete with strength and excellent hands in tight coverage who can win in the open field.
There's also a likening to Dallas Clark in Waldman's evaluation. Obviously, we should all be somewhat cautious before getting too excited.
But we should also consider the possibility that Duncan was just waiting for the right situation, and that the departure of Julius Thomas made him see Denver as precisely that. (h/t 303user and aldenbrown)