I think that you also have to look at how badly some teams are going to need the picks that the Pats have. Let's face it, you can't do didly squat in the NFL these days if you don't have a Quaterback. The following teams currently do not have anything close to a NFL caliber QB on their rosters:
Arizona
San Francisco
Minnesota
These teams may not admit it yet, but theey too need a QB:
Carolina
Buffalo
Cleveland
Seattle
Tennessee
Miami
Jacksonville
Oakland
And almost all of them will pick before the Pats do (with the Raider's pick) You have to think that Luck, Locker, Mallett and Newton will all go before #15. So the Pats may not have to trade up as high as you think to land the DE OLB. I think that #32-33 maybe a great target for a team looking to bag Chritian Ponder/Nick Foles/Blaine Gabbert/ Pat Dlevin/ Ricky Stanzi. I could see both Foles and Gabbert sneaking into the first round (becuase of the demand).
Luck - Soph
Newton - Jr
Mallet - Jr
Foles - Jr
Gabbert - Jr
Noting this because, with a new CBA still unsigned, a 2011 lockout (for however long it might last) is still a real possibility. Based on statements made within the past couple days by players union reps, the basic issues haven't even been addressed yet in negotiations.
This has to be weighing heavily on the minds of all junior prospects, including and maybe especially) QBs. Luck has said so publicly.
If these underclassmen decide not to declare - a decision they need to make in the next two weeks (and how quickly do you really think CBA negotiations can progress from where they are now?) - the following are the eligible senior QBs who would be available:
Locker
Ponder
Devlin
Kaepernick
Dalton
Stanzi
Potts
Enderle
TJ Yates
McElroy
Tyrod Taylor
Jerrod Johnson
Ben Chappell
Adam Froman
Mike Hartline
Scott Tolzien
The point being that, given the above somewhat more limited selection of QB talent, how many of those QB-needy NFL teams might (after the first 2-3 prospects are off the board) decide, instead, to draft to their second greatest need (quite possibly D-line) or simply BPA?
I mean, we may believe (or want to believe) that all these great junior prospects will declare after all. We may believe that a new CBA will be signed soon and that there won't be a lockout. But we won't really know until the signatures are on the dotted lines. Just saying, "What if?"