1. How will the Eagles and Cowboys offenses change after losing key players?
   

The Eagles lost their top quarterback, running back and wide receiver from last season. With DeMarco Murray, Ryan Matthews and Darren Sproles, the Eagles should be able to replace LeSean McCoy, but they will be relying on an oft-injured Sam Bradford to be their quarterback. With Miles Austin their only addition at wide receiver in free agency, they will

have to look in-house to replace Jeremy Maclin.

The Cowboys, meanwhile, brought in Darren McFadden to help replace Murray. With McFadden's rich injury history, they will also lean on some of their younger holdovers from last season: Joseph Randle, Lance Dunbar and Ryan Williams.

Both teams can also use the draft to address some of those needs, but both can still be expected to have top offenses.

2. What team will break out in the NFC South?
   

Last year, the NFC South featured four teams with sub-.500 records, but it's unlikely that happens again. The Saints made big changes with the trade of Jimmy Graham in an attempt to strengthen the rest of their team. The Falcons have a new head coach in former Seahawks defensive coordinator Dan Quinn, who hopes to improve the team's defense. The Bucs have the top pick in the draft, which they are expected to use on a new quarterback. Meanwhile, the Panthers came on strong at the end of last year and continue to rebuild under former Giants personnel executive Dave Gettleman. One of those teams should break out in 2015 and take control of the South.

3. Will Teddy Bridgewater break out in Minnesota?
   

The Vikings took great strides last year under rookie head coach Mike Zimmer, thanks to an improving defense. Whether their offense follows suit this year will depend greatly on whether or not Teddy Bridgewater can make a big jump in his second year. He was the best of the rookie class last year, completing 64% of his passes for 2,900 yards in 13 games. A motivated Adrian Peterson in a purple uniform come September would also be a huge help to the young quarterback.

4. How will the Jets and Bills change with new head coaches?
   

Rex Ryan brings his bravado and defensive mindset to the Bills, who already had one of the better defenses in football last year. Todd Bowles is the new head coach of the Jets and has Darrelle Revis, Antonio Cromartie and Buster Skrine to help in the secondary. But both teams are still looking for their quarterback of the future. We'll see if someone emerges amongst Matt Cassel, EJ Manuel, Geno Smith and Ryan Fitzpatrick.

5. Can Jay Gruden settle the Redskins quarterback situation?
   

Last year the Redskins started three different quarterbacks: Robert Griffin III, Kirk Cousins and Colt McCoy. All three return, and Jay Gruden will try to figure out who will be his long-term solution at the position. Robert Griffin III is now two years removed from his torn ACL – and the team must hope their former first round pick regains his rookie form and can try to lead the Redskins back to the playoffs.