How Your Favorite NFL Team's 90 Man Roster was Assembled

Recently I stumbled across a cool site called Pro Football Rosters that keeps track of how all 32 NFL rosters were built. Not only can you see how the players were added (trade, free agency, draft, etc.); you can also see what year they joined the team.

You can click here to see the Eagles full chart.

Let's jump into the data. Under each chart I listed some notes from the data that I found interesting.

YEAR CHART:

Here's a chart of when current tenured roster players were originally acquired by their teams:

Philadelphia Eagles notes:

• About 69% of the Eagles current roster was acquired in 2012 & 2013.
  
• The longest tenured Eagles are Trent Cole and Todd Herremans. They were acquired in 2005.

General NFL notes:

• There are no players that were originally acquired by a team in 1999 that are still on the same team without ever playing elsewhere. (Sorry, Charles Woodson).
• The 1 player that was originally acquired by the team they're still on and never played for another team is the Bears LS: Patrick Mannelly, 1998.
• The Kansas City Chiefs have the most newly acquired players in 2013 with 52. No surprise there since there's a new coach in town. You may have heard of the guy: Andy Reid.
• The Cincinnati Bengals have the least amount of newly acquired players in 2013 with 28.
• The Colts have the most acquired players in 2012 with 40. The Redskins and Seahawks are tied at 19 in 2011. The Seahawks have the most in 2010 with 13. The Bucs lead 2009 with 13. The Falcons have the most in 2008 with 6.
• The Seahawks and Rams don't have a player on their roster they acquired before 2007.
• No team has more than 6 tenured players originally acquired from 1998-2008 still on their roster.
• *Keep in mind that the Texans weren't founded until 2002.

METHOD CHART:

Here's a chart of the method current tenured roster players were originally acquired by their teams:

Eagles notes:

• No one has acquired more players via trade than the Eagles with 6.
• The Eagles are ranked on the lower end when it comes to UDFA signings and Waivers/Practice Squad additions.

General NFL notes:

• *The Raiders drafted Terrelle Pryor and the Browns selected Josh Gordon in the NFL Supplemental Draft.
  
• The Packers have a reputation for drafting well. Unsurprisingly they have the most players on their roster acquired via the April draft with 45. That's exactly half of their 90 man roster. The Saints only have 23.
• St. Louis has the most undrafted free agents with 42. Colts have the least with 17.
• The Falcons have only a league low 13 players that were acquired via free agency. The Bears have a league high at 43.
• The Rams, Packers, Dolphins, Titans, and Steelers don't have a player on their roster they acquired via trade.
• The Jaguars like to work the waiver wire & practice squad. They have the most waiver/PS players at 11. The Ravens, Texans, and Cardinals have 0. That seems to make sense for teams that are more competitive like Baltimore and Houston, but perhaps a not-so-good-team like Arizona should look into that option.

Bonus pie chart from the Eagles method numbers:

Disclaimer: As you may realize, some of these numbers (see: undrafted free agents) may be currently inflated. These numbers are likely to change once the rosters get cut down to the final 53, so I'll revisit this exercise again then. For now, it's just an interesting activity. Once again, a big thanks goes out to Pro Football Rosters for making this data easily available.

Enjoy!