We've now entered the back half of the NFL schedule and playoff races have taken shape in all types of fantasy leagues. That means it's time for your IDP starters to show up each and every week. And while we won't weigh in on it is that mi sed yet another game for the , we will talk about some of the guys who did step in and play well for their teams and yours.Not that long ago, I (in print?) about what was going on with . The final analysis was that Quinn was too talented for his struggles to last all season long. Turns out, that was exactly the case.After being shut out for the first five games of the season, Quinn has racked up five sacks in his last three contests. The rest of the defense has come Matt Cullen Women Jersey alive with him -- including a dominant eight-sack peformance against the last week. Hopefully you remained patient with Quinn. If so, you were rewarded.The good news is that Quinn and his cohorts look like they're getting back into the form that made them such a formidable defensive front last season. The bad news is that the back half of their schedule is loaded with teams that haven't given up a lot of sacks this season. Two matchups with the plus games against the and could pose a challenge.It all adds up to another situation where IDP fantasy managers could be forced to decide between playing matchups and waiting to see if talent will weigh out. Considering Quinn's performance against San Francisco's once-stout offensive line, I'm willing to lean toward the latter.Golden GriffenWhen it comes to IDP defensive linemen, no one's touching . But since there's only one of him -- and you likely didn't get him -- you've Matt Hendricks Women Jersey had to find someone else to plug into your starting lineup. If you decided that is that person, you're not doing too badly. If you haven't ... well it's something you should take a look at..Griffen is second among fantasy defensive linemen in scoring. Granted, there's a pretty wide chasm between him and Watt, but there's one thing he Brad Hunt Jersey has over the star; Griffen leads all defensive linemen in sacks and is second to only Kansas City's among all players in that category. Griffen has already set a new career-high with his nine quarterback takedowns as well as his 29 total tackles. He's a big part of the reason the have the NFL's 10th-ranked pa s defense and leads the league in sacks.The last portion of the schedule sets up well for Griffen. Three games against pa s-happy division foes and contests against the scuffling and moribund equal plenty of chances for the former USC standout to get after the pa ser. The only downside is that you will have to wait a week with the on a bye. If you have the depth on your roster, he's worth a pick up and stash. However, with six teams having the week off you might not have that luxury.Four downs A bad season for the just got worse. Cornerback is Kyle Quincey Women Jersey with a torn biceps. It's a huge blow to a secondary that has been troubled all year long. It's also a big lo s to IDP fantasy managers to lose a player who was among the top 10 at his position and tied for fifth in the NFL with three interceptions. It could be up to some combination of and to fill the void, though neither has been particularly great this season. The season has also come to a premature end for linebacker . The veteran was after suffering an ankle injury in Sunday's win over the . Philadelphia's defense has been opportunistic this season, making it the top team D/ST in fantasy this season. The problem is that much of that production has come from special teams, which is how Ryans can be among the team's top defenders yet not make a big IDP splash. He'll be replaced on the roster by , but fantasy managers are better off looking elsewhere for help. The will get some help in their secondary with the return of . The veteran safety was after serving a four-game suspension for violating the NFL's policy on performance-enhancing substances. With e sentially locking down one half of the field for Indianapolis, that should allow Landry more room to roam the secondary and once again be a playmaker. He's worth an add after the bye in Week 10. It feels like we write about weekly. But he's for another week with an ankle injury. It will be his fifth mi sed game of the season. This week, Shazier will have company with also ruled out for the Week 10 game against the . Those absences could put extra pre sure on linebackers and . Even against the ' me s of an offense, mi sing Greg Pateryn Kids Jersey key pieces will eventually take a toll.Marcas Grant is a fantasy editor for NFL.com. Follow him on Twitter .