With WRs, I usually look at TDs. If you're at 0 TDs for the year so far, it means you're not the go to guy. A so-so WR can get less yardage if he's getting some TDs.
Like another poster said, they have tons of WR threats. He used to be the deep threat, but now they have better options. I can't see him getting to the high side of 6 TDs this year.