I am going out on a limb here but I don't think Cooper is the first WR off the board. My guess is Kevin White and Parker move ahead during the next few months - Cooper will be a good NFL receiver but I don't think he'll have the measurables of White and Parker.
Parker's 40 at the combine will tell us a lot. He has top 10 talent but if runs a 4.5 that's going to push him down the board some. He's not 6'5" like the guys who will stay in the top 10 with a non blazing fast 40 and Matt Millen isn't around to bail him out.
Trade down a bit and get an additional second. 1. Peat 2. Dorial Green-Beckham 2. Marcus Peters 3. Duke Johnson 4. Gerod Holliman