Addition by Subtraction. The offensive line is better without Ifedi. You see....the problem wasn't about letting Russ cook. The problem was about Russ being repeatedly forced to overcome Ifedi's unforced errors (pre snap penalties). Persistent "First and fifteen" is why Seattle's offense (and Russ) habitually started so slow.
The Hawks actually spent the money that was set aside for resigning Clowney alternatively on offensive lineman. Indeed, once they decided to move on from Clowney's 20 mil price tag, they invested up front. No one can make an honest assessment about the wisdom of this until we see the offensive line in action. Including Cow Herd.
As far as the defensive line goes, Clowney was a monster.....when he didn't have a hernia. In other words, he had significant impact for about 3 games. Meanwhile, Mayowa and Irvin combined for 15 sacks last year. The Seahawks had a total of 28. Clowney had 3 of them. That was Wagner, Wright, the defensive tackles, the infrequent blitzing safeties, the defensive end rotations, the passing down packages.....everything combined. The whole team........and Irvin/Mayowa combined for more than half that many sacks last season.
I almost wish they would have kept Jacob Martin instead of dealing him for Clowney's one year rental. Martin put Mahomes on the ground early Thursday night. Not an easy thing to do. Just ask the vaunted 49er pass rushers. You know what? It wouldn't surprise me at all if Jacob Martin is on a future Seahawk roster. Pete has a thing for bringing guys back after they develop a little bit (ie. Michael Bennett and now Mayowa/Irvin) and just like Michael Bennett's prosperous return, I expect similar results from Irvin/Mayowa.
The pundits, as usual, don't have any idea until they see the team in action.