5th round is where he's been rated. He's a legit deep threat player with good size. His route running still needs work but he gets separation off the LOS and he can make tough catches in traffic. He'll be a nice late round addition for someone.
This is why I don't like spending premium picks on WR. You can find quality players in the mid-late rounds. Coley also has a nice frame - 6'0, 195, with 32"+ arms, and 9 3/4" hands. I'd be happy to add him in the 5th (depending on the board, of course).