I've said this before, but here goes:
First, we always have this conversation when the designated WR graduates. What it comes down to is that we most always throw the ball - as was pointed out above - to one WR. Usually this has little to do with the talent on the other side; it's just that we have one WR who's a bit better or more experienced and he gets the throws. Then he graduates and we get in a tizzy about the other guy coming up. Usually the reason he hasn't shown much is that he hasn't been thrown the ball much. This, shockingly, leads to poor catching stats. My prime example here is Waller. Everybody said he had hands of stone and, when Smelter went down, there was much wailing and gnashing of teeth. The we started throwing to him and - surprise, surprise, surprise - it turned out he was pretty good at catching. I think this will be the case next year with Brad. He'll probably be our designated WR this year and I suspect he'll do quite well. He's faster then Ricky was and has good hands; there's a reason he was returning punts.
Second, I don't think TM's height was much of a factor and I also think our pass blocking was better last year. So why the poor results? It wasn't that TM doesn't have the arm; he does. It's that this was his first year starting and he went up against some right decent Ds, especially in the later part of the season. Inexperience makes everything harder, especially against good Ds. His terrific running ability also betrayed him at times; he often tried to run out of trouble instead of throwing the ball away. I don't blame him, but I suspect he'll get a good long talking to about that - and setting up, even if you are going to get clobbered - this spring. If he improves - I think he could be extremely successful with a 45% completion rate; Nesbitt was - then we'll do fine. If not then, we'll see what the next horse up does.