The big picture is he is now in the ownership circle at CenturyLink which is a partner with the Seahawks, he may not be able to own part of the Seahawks now but the stage is set for a possible cross over with that after he retires at 55.
You gotta be a billionaire, with a "b" to get into the big boy NFL club, even as part owner. I don't think Russell will ever bet at the net worth needed to be an NFL owner...............maybe a VERY small minority owner.
Sounders are a great start though for him to get into pro sports ownership and see how that world operates. Also great for the Sounders having him as a high profile owner being at matches and club events.