The Seattle Seahawks never replaced Bruce Irvin a year ago. They struggled to replace Byron Maxwell and Golden Tate before that. They’ve seen their entire Super Bowl offensive line leave. It is impossible to replace someone like Marshawn Lynch.
Losing talent is an inevitable consequence of being good in the NFL. The salary cap makes it impossible to keep everyone. Luckily, the Seahawks get a year off from dealing with that type of talent drain.
Using the database at OverTheCap, we can see that the Seahawks don’t have many players set to leave that would would be difficult to lose.