I don't know...I think Decker is pretty good...he'll get you a lot of 8's but the big games are going to come from D. Thomas. Good, reliable but unspectacular. Personally, I trade him for a more unproven guy with upside like a Hartline. At the end of the day I want the primary target on the passing offense and Decker isn't it.
Thomas 46 targets , Decker 44 targets. Decker has 7+ targets every game this year. The difference is just that Thomas is a big play guy and Decker isn't. That's why Thomas is a wr1. However, Decker is Peyton Manning's "#2" which isn't a bad thing. He's also, from what I've watched (I don't have an officially count) had a solid amount of red zone and end zone targets. He's had 1 pass interference in the red zone and had another one that wasn't called. He's not Thomas but that's not the question. He is a guy I personally have tried to trade, because yes he can be boring, but his worst game (point wise) in standard ppr is 4 catches for 53 yards (9 points). Not many guys have that downside, and he's mixed it in with 2 huge games. He's on pace for 90 catches, about 1100 yards and 6 tds. Also, I think defenses will give a little more attention to Thomas as the season goes on. In my ppr league which is pretty standard (2 point bonus for 100 yards, everything else normal) he is #19 in ppg among wr's. I think he's a pretty solid low-end wr2. He's had some low end wr3 games, and has had two wr1 type games. In the end, the 15-22 range sounds about right.