Free agency is almost here. Come March 9 at 4 p.m. EST, it will be a free-for-all in the NFL marketplace.

Paul Posluszny (31) & Sean Lee (45).

In order to give you a better idea of where the Dallas Cowboys stand and their needs heading into free agency, below is a defensive depth chart breaking things down.

Defensive Tackle

1. Tyrone Crawford

2. Terrell McClain

3. David Irving

4. Casey Walker

Unrestricted free agents: Nick Hayden, Chris Whaley

Restricted free agents: None

Exclusive rights free agents: None

The Cowboys could look to add to their defensive tackle position by finding a pass rusher instead of a run stopper. However, Crawford played the majority of 2015 with a bum shoulder and Terrell McClain exited after Week 2 with a toe injury, and both players can make a difference when healthy.

Defensive End

1. DeMarcus Lawrence (LDE)

2. Randy Gregory (RDE)

3. Ryan Russell

Unrestricted free agents: Greg Hardy, Jack Crawford, Jeremy Mincey

Restricted free agents: None

Exclusive rights free agents: None

The Cowboys attempted to improve their pass rush last offseason and they'll look to do the same this year. Hardy is expected to be shown the door and Gregory is suspended for the first four games at start of next season. Adding defensive ends in free agency will be a top priority.

Linebacker

1. Sean Lee (WLB)

2. Anthony Hitchens (SLB)

3. Andrew Gachkar

4. Damien Wilson

5. Mark Nzeocha

Unrestricted free agents: Rolando McClain, Kyle Wilber

Restricted free agents: None

Exclusive rights free agents: None

The front office has already stated their intent to re-sign McClain as the linebacker fits the system pretty well. The Cowboys could pick up another linebacker in free agency and then turn to the draft in April for one more linebacker.

Cornerback

1. Brandon Carr

2. Orlando Scandrick

3. Terrance Mitchell

4. Deji Olatoye

Unrestricted free agents: Morris Claiborne, Joshua Thomas

Restricted free agents: None

Exclusive rights free agents: None

Getting Scandrick back should be a huge plus, but the Cowboys should focus on re-signing Claiborne. Carr could be subject to a cut this offseason which puts more emphasis on solidifying the cornerback position.

Safety

1. Barry Church (SS)

2. J.J. Wilcox (FS)

3. Byron Jones

Unrestricted free agents: [b]Danny McCray

Restricted free agents: Jeff Heath

Exclusive rights free agents: None

Jones is expected to move to safety this offseason. The Cowboys will look to re-sign McCray for special teams and Heath might be a good option when considering depth.