There has been a lot of talk about the QB's falling out of the top 8, but think it through.
Buffalo would have to think long and hard about selecting their top rated QB (insert your favorite guy's name here, just don't debate it in the comments). We would go into the 2014 season with EJ as our #1, Lewis as #2, and ____________ as #3. By the end of September, Lewis drops to #3 as ________________ moves up to #2. Going into 2015 either EJ is a solid playoff caliber QB, or he's a decent, and relatively inexpesive, back-up for the next 3 years.
Tennesee would be tripping over themselves to get up to the podium to grab their QB of the future at #11.
Just about any team ahead of Cleveland at #26 (other than GB) would have to consider grabbing a cheap back-up with huge upside. A mid 1st round pick would be locked up for up to 5 years for less than it would cost in FA for a warm body. Plus, when you talk BPA, how can they pass. I'm thinking Arizona or Philly would jump at the opportunity to take the 2nd QB of the board, especially if it's their top rated guy.
Let's say 2 QB's are gone when Cleveland picks at #26. One would be probably be Bortles, the other would be Manziel, Bridgewaters, or Carr. Cleveland would be thrilled with the thought of staying put at #26, and still having a choice of the 2 remaining (some mocks have them with the same option at #4).
Now the QB needy teams are scrambling to move back into the bottom of the 1st round to grab the reamining guy. They don't like it, but if they don't do it, one of the bottom 6 teams might decide to grab a cheap back-up with huge upside. If they don't move up, and nodoby grabs a QB, then Houston get's their guy at #33, and Jacksonville, Oakland, and Minnesota race to the bottom for the right to do it all over again in 2015!
The other option for the QB needy teams at the top of the draft would be to pick the stud positional player, then to trade back into the top half of the 1st round to get their QB. Tennessee will get their guy, and any number of teams in the middle of the round could easily see one of these guys sitting on the board, and grab them for depth or as a future starter (possibly even considering moving up a few spots if it doesn't cost them an arm and a leg). A bidding war would follow, and somebody will end up over-spending for a guy they could have just selected an hour or so earlier. The bottom line is that it's just going to be too expensive to move up that far, although somebody might be foolish enough to consider it.
At any rate, the top 4 QB's will go in the 1st round, and the QB needy teams at the top of the draft miss out unless they bite the bullet and use their 1st pick on QB, or bite the bullet and move back into the 1st round. If they do the latter, they'll have to part with valuable picks in a deep draft, and still possibly have to settle for their #3 or #4 rated guy.