Yeah, now that I see the two players Seattle is giving up, I'm shocked. Clowney (and the 'Hawks) can probably thank Le'veon Bell for this outcome, I'm guessing the Texans decided this deal was better than getting nothing.
It is a credit to John and Pete that Seattle had cap space to make this move. Mingo is no loss.
This is a deal about who can pay for Clowney. They put Seattle in a position where the can. Impressive while you pay you QBs what they do.