The three worst defensive teams in the NFL are the Titans, Bills and the Saints. On average, each defense allows more than 420 yards per game and 30 points per game.

It’s almost embarrassing.

So with all three teams in action this week, it’s time to prey on the weak. The Titans face off with the Bears, the Bills play the Texans and the Saints have a Monday night contest with the Eagles. Let’s start with the Bears.

Matt Forte (running back, Bears) — If healthy, Forte is a must-start guy every week anyway, so don’t change your approach now. But against the pitiful Titans, Forte may have his first breakout performance of 2012. He’s been solid, sure — about 20 touches and 100 yards per game — but he’s not a candidate for any postseason fantasy awards. That is, unless he whips Tennessee, finds the end zone a few times and rides the momentum until season’s end. Then, maybe a fantasy award. Maybe.

Brandon Marshall (wide receiver, Bears) — I understand NFL trades about as much as I understand Yiddish. How could the Dolphins trade Marshall to the Bears for two third-round picks? Do the Dolphins think they’ll find even one comparable player with a third-round pick? This is always how NFL trades go, but I just don’t get it. The Bears robbed Miami clean when they got Marshall. He’s a stud and he’s on fire — 461 yards and three touchdowns in his last four games. Expect his recent hot streak to continue against the Titans.

Next up: Houston Texans

Houston scored 43 points against the Baltimore defense its last time out. Now the Texans are coming off a bye week against not the Baltimore defense. Expect them to score 94.

Arian Foster (running back, Texans) — Obvious. He’s the best running back in fantasy. He has been for the past few years. You don’t need me telling you this. Play him every week.

Andre Johnson (wide receiver, Texans) — A few years ago, I’d say about Johnson what I said about Foster, but times have changed. Johnson is not a must-start every week. He hasn’t had a 100-yard game since Week One. He has only two touchdowns. But he still is Andre Johnson, so a big game is always in the cards. But it hasn’t happened yet. This may be that big game. I hope so. The fantasy world is more fun with a dominant No. 80.

Owen Daniels (tight end, Texans) — It’s an easy equation. With four touchdowns in his past five games, Daniels has a knack for the end zone. With 32.4 points allowed per game, the Bills defense has a knack for letting people in its end zone. Solution: Daniels gets in the end zone.

And finally, the Monday night matchup

Michael Vick (quarterback, Eagles) — Yeah, that’s right! I’m still a believer. I remember the fantasy god Vick once was. I remember the fear he instilled in opposing defenses and fantasy owners. Andy Reid rubbed his belly with delight in those days. And now Vick is back! (Actually … probably not. I don’t think he’s back. I just think he’ll have a big game this week. He’ll probably be on the Eagles bench by November’s end. Fun!)

DeSean Jackson, LeSean McCoy, Jeremy Maclin (flex, Eagles) — All three of these guys are supposed to be fast, dynamic and ready to break loose for a 93-yard touchdown at any moment. All three players, this year, are garbage. Those are the facts. And that is why, if you have any of these three players, you should start them this week. Best-case scenario: they explode, as they should, against a terrible Saints defense. Worst-case scenario: they bust, you realize that if they can’t even produce against New Orleans, they aren’t going to produce against anyone, and you try to trade them while you still can. Week Nine is a barometer week for the Eagles speedsters.

Jack is a senior in LAS. He can be reached at [email protected]. Follow him on Twitter @JCassidy10.