NFL: Carolina Panthers at Philadelphia Eagles

Nov 10, 2014; Philadelphia, PA, USA; Philadelphia Eagles general manager Howie Roseman reacts against the Carolina Panthers at Lincoln Financial Field. Mandatory Credit: Kirby Lee-USA TODAY Sports

(Kirby Lee)

The NFL offseason is quickly approaching, and could be starting sooner than expected for the Eagles after their loss to the Dallas Cowboys this past weekend.

The good news is that when it comes to improving their team, the Eagles will have plenty of cap room to play with in free agency.

According to the NFLPA's website, the Eagles will enter this offseason with $15,746,950 in salary cap space, the third most in the NFL. Only the Jacksonville Jaguars ($21 million) and Cleveland Browns ($18 million) will have more.

That number for the Eagles could also end up going up, as they could decide to part ways with players like tight end James Casey ($4 million), linebacker DeMeco Ryans ($6.8 million) and outside linebacker Trent Cole ($11 million). After factoring in the dead money that could still count against the cap, the Eagles would save another $18.5 million.

Combined with the $15 million they already have free, and the Eagles could be working with as much as $34.2 million.

It is also possible the team attempts to restructure the deals of cornerback Cary Williams ($8.1 million) and running back LeSean McCoy ($11.5 million) to lower their salary cap hits.

The Eagles will need the space, as they have a number of holes to fill and current players to pay. The team is going to need to sign potentially both a starting cornerback and safety, as well as address both the inside and outside linebacker positions. Some of those holes can be filled through the draft, but if this past year's draft class is any indication, the team would be better served filling major holes through free agency.

As for current players, the team will be able to extend linebacker Mychal Kendricks, defensive end Fletcher Cox, quarterback Nick Foles, and receiver Jeremy Maclin once the season ends. Other than Foles, all three of those players will likely require big-money deals that will eat up a good portion of the salary cap space. New contracts for part-time pass rushers Brandon Graham and Vinny Curry will also have to be addressed.

Here is a look at the teams that currently have the most salary cap space:

1. Jacksonville Jaguars: $21 million

2. Cleveland Browns: $18 million

3. Eagles: $15.7 million

4. New York Jets: $12 million

5. Tennessee Titans: $11 million

6. Cincinnati Bengals: $8.8 million

7. Oakland Raiders: $8.3 million

8. Green Bay Packers: $8 million

9. Miami Dolphins: $7.9 million

10. Indianapolis Colts: $7.7 million

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Eliot Shorr-Parks may be reached at eshorrpa@nj.com. Follow him on Twitter @EliotShorrParks. Find NJ.com Sports on Facebook.