The 2015 NFL offseason has been one of the most exciting when it comes to big-name players changing teams, either via trade or by signing contracts with new teams. Of course, most of the movement that will affect fantasy values happened on the . However, there were also a few moves that will alter values on the defensive side of the field ... both in standard leagues and for owners who participate in individual defensive player (IDP) formats.Here's a look at the defenders and defenses that were affected most as we look to 2015., DL, : Suh left the Motor City for South Beach, signing a ma sive with the . A strong pa s-rusher who is also stout against the run, Suh helped the in allowing the second-fewest fantasy points (14.28 PPG) to opposing Enes Kanter Jersey running backs last season. That's over four fewer points per game than Miami allowed, so facing the Fins will be a tougher task for runners. In IDP leagues, Suh figures to remain on the DL2 radar., DL, : The replaced Suh with Ngata, who had been an IDP a set earlier in his career but has seen his numbers falter in recent seasons. On a positive note, he helped the allow the fewest fantasy points to opposing running backs (12.99 PPG) last season. So while the lo s of Suh hurts the ' line, this unit should still be tough against the run as long as Ngata is on the field. That means opposing runners will continue to have tough matchups against the in 2015., CB, : Revis doesn't hold a lot of IDP value (it's hard to score fantasy points when no one throws in your direction), but his impact on the matchups is enormous. The last time Revis and fellow cornerback worked together in the Big Apple (2011), the allowed a mere seven touchdown catches and the fourth-fewest fantasy points (15.14 PPG) to wide receivers. Gang Green were also stubborn against quarterbacks that season, allowing an average of fewer than 12 fantasy points per game to the position. defense: Aside from losing Revis, the also lost corner back () and defensive lineman () this offseason. While the team was able to retain safety , this unit still won't be as bad a matchup for opposing quarterbacks and receivers compared to 2014. New England allowed just 15.42 fantasy points per game to quarterbacks and the fourth-fewest fantasy points to wideouts (19.12 PPG) ... those two averages are likely to rise next season., LB, : One of the biggest deals from a fantasy standpoint included , who was for Alonso. Almost eight months removed from an ACL reconstruction, he's expected to be back in time for the start of training camp. He was a major fantasy a set as a rookie, posting 159 total tackles and the sixth-most fantasy points among linebackers. The presence of fellow linebacker could hurt Alonso's appeal, though, so consider him a LB2 in drafts., LB, : Lofton is a tackling machine who ranked sixth in fantasy points among linebackers last season, but he's never posted huge numbers in the sacks or pa ses defensed categories. And while Lofton is expected to fill the starting middle linebacker role with his new team, whether he remains an every-down player under new coach Jack Del Rio remains to be seen. Remember, and both played well last season and could push Lofton out of a prominent role. Such a scenario could hurt his IDP prospects. defense: The added defensive tackle , who isn't much of an IDP a set but adds depth to one of the most formidable defensive lines in the league. As part of the defense, albeit in eight games, Fairley helped a unit that allowed the second-fewest fantasy points to runners. Now in St. Louis, he joins fellow linemen , , and a defense that surrendered the seventh-fewest points to opposing backs (15.13 PPG) in 2015. So while Fairley has no real IDP value, his presence makes the defense an even tougher matchup for runners., LB, : The re-signed linebacker and added Orakpo, who mi sed nine games last season but racked up 10 sacks during the 2013 campaign. The team now has some real upside in their pa s rush with lineman also in the mix. That makes the defense a potential matchup-based option for fantasy fans next season. Orakpo isn't going to record a lot of tackles, however, and being listed as a linebacker will be a detriment to his IDP appeal.Michael Fabiano is an award-winning analyst on NFL.com and NFL Network and a member of the Sports Writers A sociation (FSWA) . Have a burning question on anything fantasy related? Tweet it to __ or send a question via ! C.J. McCollum Jersey