With the offseason officially underway, Dj Ivey Jersey will examine . Next up: .What's changing?Former coach Rex Ryan has replaced Doug Marrone, who settled for the after opting out of his contract. Former offensive coordinator Greg Roman, hailed as two years ago, should be an upgrade on the offensive bo ses Ryan had in New Jersey.Although Ryan is excited to work with 2013 first-round draft pick , he has also vowed to to add competition at quarterback. Ryan lacks a first-round pick this year as a result of last offseason's trade with the .The have already forayed into free agency, for Roman's power-running scheme.Biggest free agents*DE :* One of the most productive pa s rushers , Hughes has generated 120 combined sacks, hits and hurries over the past two seasons, per Pro Football Focus -- just shy of All-Pro ' total of 129. It's a good sign that he was just as productive in Jim Scwhartz's system as he was in Mike Pettine's the year before. Hughes has expre sed interest in re-signing, but .*RB :* Spiller is , but has also with Chan Gailey, who is now running the offense. One of the NFL's when healthy and used correctly, Spiller is a better fit for Gailey's offense than Roman's.*LB :* Purely a run-stuffer, Spikes played roughly half of the defensive snaps last season. With and emerging as quality starters and returning from reconstructive knee surgery, Spikes is likely viewed as a luxury rather than a nece sity.Other key free agents:, , , On the way out?*OG and :* Urbik is the better fit for Greg Roman's power-blocking scheme, but neither of these interior linemen is an a set with a salary over $2 million. , a 2014 fifth-round draft pick, should be ready to move into the starting lineup opposite Incognito.*LB :*Lawson was relegated to a rotational role under Jim Schwartz, switching from linebacker to defensive end. . Releasing both part-time players can save the team over $3 million.*TE * The have been in need of a tight-end upgrade for over a decade now. Chandler carries a cap number near $3 million. It's a considerable sum for a player whose production declined in 2014.What they needNothing we have seen in Manuel's 14 starts suggests he po se ses the to succeed as an NFL starter. In other words, the top need is a quarterback solution. Unle s the new coaching staff is higher on than the former one, running back is also on the radar if Spiller departs. Roman will also be eyeing a pa s-catching tight end after working with player in San Francisco.Offseason crystal ballOf the key free agents, Hughes seems the most likely to return. Ryan's comments suggest the will import a veteran place-holder at quarterback, such as or , while also pulling the trigger on a second- or third-round signal-caller if a draft prospect catches their fancy.The defense is already championship caliber. After failing to develop a quarterback in six years with the , Ryan must prove for the first time that he can coach more than one side of the ball.The latest Podcast and reacts to the latest news. Find more content on . Vontaze Burfict Jersey