At 6'0'' and 225 pounds, Green is a between-the-tackles, Rex Ryan type of running back.
Starter Chris Ivory was known for his violent running style during his tenure in New Orleans with the Saints and is listed at 6'0'' and 222 pounds.
Now the most diminutive member of Gang Green's backfield, Bilal Powell was described as "thickly built with a low center of gravity" by NFL.com when he entered the league out of Louisville in 2010.
Ryan isn't playing any games.
He's always wanted to win with power running and defense. Everyone knows that. When his philosophy is executed correctly, it doesn't matter who knows.
Based on the relatively shaky quarterback and wideout situation, Ryan's making a concerted effort to return to his coaching-style roots in 2013.
Let's take a look at what Green brings to the Jets as the No. 3 running back to start the season.
He was picked in the third round of the 2011 draft out of Hawaii and ran a 4.53 in the 40-yard dash at the combine at 225 pounds.
In his rookie campaign, he carried the ball three times for 11 yards but was lost for the year after tearing his ACL.
Last year, Green toted the rock 135 times for 464 yards for a 3.4 yards-per-carry average and didn't score any touchdowns.
While his sophomore stat line isn't encouraging, it's important to remember that none of the Packers running backs had much success on the ground in 2012.
Green's 464 rushing yards led the team, and Green Bay finished the season with a combined yards-per-rush average of 3.9.
Pro Football Focus (subscription required) rated the Packers as the fourth-worst run-blocking offensive line last year, which likely didn't help Green and his constituents.
Here's a comparison of the Jets' newly formed running triumvirate:
Although Ivory's sample size was dramatically smaller than Powell's and Green's, he enters the 2013 season as the most elusive and efficient runner of the group.
Green doesn't have a solid resume, however. Ivory's NFL career has been marred with injury, and the Jets' run-first offensive attack means the former Packer could see the field more often than most third-string running backs.
As a team, New York ran the football 494 times in 2012, the sixth-highest total in the league.
In 2009, during their first trip to the AFC title game under Ryan, the Jets totaled an NFL-high 607 rushes. The following season, their 534 carries were the second-most in football.
Although the Packers didn't get Green involved much in the passing game, he did show abilities as a receiver out of the backfield during his final year at Hawaii, as he caught 27 passes for 363 yards and a touchdown.
There's a good chance he's used as a third-down back after Ivory and Powell are used to pound the rock on first and second.
Alex Green's ACL tear and subsequent ineffectiveness led to his release in Green Bay. But the Jets, a team seemingly dedicated to competing with downhill running and stingy defense, got a physical specimen who adds much-needed depth to the backfield.