Awesome news, as Boulware was essentially on the chopping block; i.e. this is the something for nothing trade smart GM's make.
Here's what we need to know about Babin: He's 27, a former first round pick with big tools (28 reps on the bench, a very quick first step) who has been completely misused as an outside linebacker in Houston. Returning to his preferred position, he will help Seattle's pass rush for this year and work into being a long-term replacement in subsequent seasons.
Tim Ruskell once again scores with a savvy move, shipping off a player that was on his way out in Seattle for a former first round defensive end in his prime.