I have been thinking about the OP's scenario. I used to be all in for Blackmon. He is an elite talent, but there are other players that can help us too. We should stand pat and not over pay. At 8/9, we can get an impact player. It might be Richardson(upgrade over DT), Clarbourne(upgrade over SS), or Blackmon(beast opposite BM) depending on how things go. Three teams above us will probably take QB's. Another 2 teams will take a OT or DT. There is a great chance one of those guys will be there at 8/9. If those guys are gone, we can then trade down 10 spots and get 2nd tier playmakers or draft Tennehill, or a defensive player. Who knows, being a new staff, these guys might trade down repeatedly to accumulate picks. And try to get the great value picks in the 2nd and 3rd rounds. Ireland has done this before. If the player they covet is not there at 8/9, I would not be surprised.
Another thing. The WCO offense is primarily a short to medium controlled passing game in which the Qb gets rid of the ball quickly. The deep throws happen during the occaisional play where there is a broken coverage or the WR beats his man deep. The main attribute for this style is quick feet, and quick accurate release and well as pre snap reads. Moore and Flynn can do this. I think moore has the better long ball. It will be interesting to see them compete if we can sign him. If we can sign him without GB compensation, I think we will.
Another QB that might be a sleeper is Osweiler. He is very tall (6'7") with a quick release, good vision, read defenses, and strong arm. He has pocket mobility, but not a scrambler. He has the basic tools, but he needs some training camps to get groomed. To me he is Ryan Mallet without the immaturity and social issues.
I would keep an eye out for us grabbing him in 3-4 round.
Just my .02