NFL Network: Bears' Briggs, 31st Pick for Skins' 6th Pick?

[Schneed10]

With any deal you make, whether for players or in business, you have to look at the opportunity cost, or said differently, what opportunity we're giving up to make this deal.

To me, we currently have the opportunity to either:
1) Select Amobi Okoye at 6th overall and get the beast DT that we need eat up blocks, allowing our LBs to flow to the ball, and allowing our DEs more space to rush the passer.
2) Trade #6 for multiple picks, such as a high 1st (still allowing us to get an impact DL player) and a 2nd. Which essentially means we'd be giving up a chance to draft a 2nd rounder who could play G or S for us. There is evidence that Denver is willing to make a deal. And if Adrian Peterson falls to us, there's a real possibility we could end up with a massive package being proposed to us.

In this deal, we get Briggs. But we give up ANY possibility at getting a huge offer for #6 should Quinn or Peterson drop to us. We give up the ability to fix our horrible DT spot opposite Griffin (please, let's dismiss the notion that Golston will ever be effective stopping the run at 290 pounds). We also give up more cap space because Briggs will be more expensive than the #6 pick. And we give up on the opportunity to let Rocky McIntosh develop into a serious player, because we'll have 3 LBs in front of him, plus Marshall vying for time as well.

Just look at the cost-benefit picture here. It doesn't add up.