Terrance Williams on injured reserve; David Irving added to roster Cowboys defensive tackle David Irving has finished serving out his four-game suspension and is now back on the roster. While this was a move everyone expected http://www.authenticsdallascowboys.com/cheap-la_el-collins-jersey , the bigger question is who would the Cowboys move to make room for him. Well, that answer was revealed this afternoon as the team placed Travis Frederick and Terrance Williams on injured reserve.Frederick has yet to play this season after being diagnosed with Guillian-Barre syndrome which is an auto-immune disease that causes him to lose strength in his muscles. The move to place him on IR means that the team’s All-Pro center will be on the shelf for the next eight games. The Cowboys have a much better understanding of where they stand with him in terms of him regaining his physical strength and are optimistic he can return for the team’s final three games of the season. Frederick commented on his progress thus far:As for Williams, he is battling a foot injury. He has surgery during the offseason and there are still some lingering effects as he hasn’t been practicing lately. The Cowboys have several receivers on the roster and he wasn’t being used much anyways. Williams has only two catches on the year for just 18 yards.Both Frederick and Williams were taken in the 2013 NFL Draft. In fact, Williams was the bonus draft capital the Cowboys acquired from the San Francisco 49ers when they traded back and selected Frederick. They will be forever connected for that and now they both hit IR. At this point in the season, rooting for the Dallas Cowboys to make the playoffs is an act of faith. Watching the Cowboys struggle to a 3-4 record makes it hard to have real confidence that some kind of run is on its way. If you accept 10-6 as the playoff mark Color Rush Jaylon Smith Jersey , it’s not always correct but most of the time if you can get to that record you likely make the playoffs, then the Cowboys have to finish up with a 7-2 record. The Amari Cooper trade adds hope that the offense can get on track, at least somewhat, and ditto the move to replace Paul Alexander as the offensive line coach. With a defense that is the second-best in the league at not allowing points, just an average http://www.authenticsdallascowboys.com/cheap-tyrone-crawford-jersey , consistent offense would change things dramatically.Even if that happens, going 7-2 is a tall task for any team. Injuries, freak plays, bad referee calls, any number of random occurrences can derail a team in a football game. The Cowboys upcoming schedule reads as such:Tennessee@ Philadelphia@ AtlantaWashingtonNew OrleansPhiladelphia@ IndianapolisTampa BayNew York (Giants)The trick is to get to 7-2 out of that. The most likely route would be to lose at Philadelphia and at home against New Orleans and sweep the rest. Those are the kind of odds the Cowboys are up against barring a meltdown by the rest of the NFC East.For specific odds http://www.authenticsdallascowboys.com/cheap-kavon-frazier-jersey , we turn to 538.com. They give the Cowboys a 21% chance of making the playoffs, a one in five shot.When 538.com runs its 100,000 simulations of upcoming games, they basically peg Dallas as an 8-8 team. That equates to a 5-4 run over the last nine games. To make the playoffs, they are going to have to defy the average.If you want a more upbeat prediction Youth Travis Frederick Jersey , we present this human prediction from the good folks at SB Nation.So BTB, make your call right now. Vote in the poll then predict the Cowboys final record in the comments.