I've been looking at a bunch of these mock drafts and I think that the Falcons are the wild card to how the draft shakes out.
Most sites and people agree that the pre-combine top 5 in no particular order shake out as:
Considering their FO's history with the Pats I think it is likely that they will become trading partners with Dallas, assuming Dallas (read Jerry Jones) is in love with McFadden as people think.
Atlanta is more than 1 player away and they are in cap trouble because of the Vick situation. My understanding is that they will not receive a credit to their cap for his signing bonus until they actually recover it from Vick and Vick' s lawyers will make tha a long process. (If I am wrong please feel free to correct me.)
Most people think Al is also in love with McFadden. This leaves him holding the bag (couldn't happen to a nicer guy). He won't take Ryan
This scenario leaves Ryan as the annual slider. I doubt any of teams ahead of us will take Ryan, except for the Jets. Clemens and Pennington are not the answer. This means that the DL and LB prospects that fit both the Jets and Patriots system are still available at #7. If the Jets do not take Ryan I think there could be a bidding war for our pick by teams like the Bucs, Bears, and Vike who all need a QB to jump ahead of the Ravens who need a QB also.
The Pats trade back and take a CB or LB/DE in the middle of round one, pick up another pick one the first day or a day one pick next year.
Of course this is all frought with speculation and assumptions, but hey it's a slow football day