Wade is currently a very solid #3. He could be a #2 reciever, but not much more than that IMO. He isn't very tall, he's pretty quick, but not in a world beating kinda way. Justin Gage is the reciever everyone thinks could be a solid #1. Really, besides Gage, Terrall and Wade....we have no one. So him starting isn't really a sign of much. Tho he is certainly better than most #3 we have had over the years.
As for his lack of catches, the offense in Chicago now focuses alot more on things like passes to the RB and TE than it did before. I think passes to the WR are down in general. I mean, I think Terrall has 8 catches in 2 games (only one of those against Greenbay), and he's the number one reciever.