PHILADELPHIA (CBS) — It’s no secret—the Eagles need to improve their secondary. The good news is, that’s very possible because three of their four starting defensive backs may have played their final game in midnight green.

Cornerback Bradley Fletcher and safety Nate Allen will both be unrestricted free agents. Also, the Eagles would save about $6.5 million on the cap if they decide to cut corner Cary Williams.

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Some are calling the 2015 NFL free agent class the best ever, so you would expect the Eagles to spend money in order to bolster their secondary, a unit which allowed the second most passing yards per game in the NFL (264.9).

Here’s a look at five unrestricted free agent defensive backs the Eagles could target in free agency.

 

5. Rahim Moore, safety

DENVER, CO - SEPTEMBER 7:  Free safety Rahim Moore #26 of the Denver Broncos intercepts a pass deflected by cornerback Aqib Talib #21 intended for tight end Dwayne Allen #83 of the Indianapolis Colts that was during a game at Sports Authority Field at Mile High on September 7, 2014 in Denver, Colorado.  (Photo by Jeff Gross/Getty Images)

DENVER, CO – SEPTEMBER 7: Free safety Rahim Moore #26 of the Denver Broncos intercepts a pass deflected by cornerback Aqib Talib #21 intended for tight end Dwayne Allen #83 of the Indianapolis Colts that was during a game at Sports Authority Field at Mile High on September 7, 2014 in Denver, Colorado. (Photo by Jeff Gross/Getty Images)

Moore, who will be only 25-years-old in Febuary, played his first four seasons with the Denver Broncos after shining at UCLA. Moore, a second-round pick in 2011, missed the final six regular season games and playoffs in 2013, but has bounced back to play in all 16 games of 2014 after recovering from lateral compartment syndrome.

This season Moore has tallied 49 tackles, two forced fumbles, one fumble recovery, and a career high four interceptions. His Broncos host the Colts in the AFC Divisional Playoff round this weekend.

4. Kareem Jackson, corner

EAST RUTHERFORD, NJ - SEPTEMBER 21:   Kareem Jackson #25 of the Houston Texans breaks up a pass intended for  Rueben Randle #82 of the New York Giants in the second quarter at MetLife Stadium on September 21, 2014 in East Rutherford, New Jersey.  (Photo by Alex Goodlett/Getty Images)

EAST RUTHERFORD, NJ – SEPTEMBER 21: Kareem Jackson #25 of the Houston Texans breaks up a pass intended for Rueben Randle #82 of the New York Giants in the second quarter at MetLife Stadium on September 21, 2014 in East Rutherford, New Jersey. (Photo by Alex Goodlett/Getty Images)

Jackson just completed his fifth season with the Houston Texans and will turn 27-years-old in April. Jackson has only missed six games in five years, and has also played in four playoff games. Jackson, a first-round selection from Alabama, has 10 career interceptions.

3. Brandon Flowers, corner

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SAN DIEGO, CA - OCTOBER 19:  Running back Jamaal Charles #25 of the Kansas City Chiefs dives around cornerback Brandon Flowers #26 of the San Diego Chargers to score a touchdown to finish a 16 yard run in the second quarter at Qualcomm Stadium on October 19, 2014 in San Diego, California.  (Photo by Stephen Dunn/Getty Images)

SAN DIEGO, CA – OCTOBER 19: Running back Jamaal Charles #25 of the Kansas City Chiefs dives around cornerback Brandon Flowers #26 of the San Diego Chargers to score a touchdown to finish a 16 yard run in the second quarter at Qualcomm Stadium on October 19, 2014 in San Diego, California. (Photo by Stephen Dunn/Getty Images)

Flowers turns 29-years-old in Febuary and has played seven seasons in the NFL, six with the Kansas City Chiefs and one with the San Diego Chargers. Flowers has 20 career picks and one postseason interception in two playoff games played.

2. Byron Maxwell, corner

SEATTLE, WA - OCTOBER 12: Cornerback Byron Maxwell #41 of the Seattle Seahawks breaks up a pass intended for wide receiver Dez Bryant #88 of the Dallas Cowboys during the second quarter of the game at CenturyLink Field on October 12, 2014 in Seattle, Washington.  (Photo by Otto Greule Jr/Getty Images)

SEATTLE, WA – OCTOBER 12: Cornerback Byron Maxwell #41 of the Seattle Seahawks breaks up a pass intended for wide receiver Dez Bryant #88 of the Dallas Cowboys during the second quarter of the game at CenturyLink Field on October 12, 2014 in Seattle, Washington. (Photo by Otto Greule Jr/Getty Images)

Maxwell, a 2011 6th round pick of the Seattle Seahawks, has blossomed into a solid starting NFL cornerback. Maxwell, 26, has six interceptions in the last two seasons and is a Super Bowl champion.

Maxwell and the Seahawks are looking to repeat as Super Bowl champs, as they host the Carolina Panthers in the NFC Divisional Playoffs this weekend.

1. Darrelle Revis, corner

FOXBORO, MA - AUGUST 22:  Darrelle Revis #24 of the New England Patriots runs into position during before a game with the Carolina Panthers at Gillette Stadium on August 22, 2014 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)

FOXBORO, MA – AUGUST 22: Darrelle Revis #24 of the New England Patriots runs into position during before a game with the Carolina Panthers at Gillette Stadium on August 22, 2014 in Foxboro, Massachusetts. (Photo by Jim Rogash/Getty Images)

Revis, a six-time Pro Bowl corner and Pennsylvania native, will be the most expensive player on this list by far. While it isn’t likely the Eagles will want to break the bank on one player like Revis, we can dream right?

Revis turns 30-years-old in July. He has 23 picks in eight seasons.

Revis and the Pats host the Baltimore Ravens in the AFC Divisional Playoffs this weekend.

 

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