One thing GMs overlook when streaming defenses is the pressure their team's offenses put on them
When you combine suspect offenses with middle of the road defenses, don't always get he results you want
I would stick with some of the better defenses like the Vikings and or Bears, I play redraft leagues where the benches are short and so no teams carry more than 1 Def/ST
That leaves a lot of defenses to grab based on match ups, the problem is the following week after that 1 match up.
The Seahawks were taken on waivers in many leagues I saw this week, that might be the winner for those looking thru Seattle, New England and Denver as possibilities