Undrafted NFL Free Agents 2015: Latest Details on the Biggest Signings

The 2015 NFL draft may be over, but there is still plenty of talent to be had on the undrafted free-agent market.

Several, such as Isaiah Crowell, Allen Hurns and Branden Oliver, come to mind as players who didn't hear their name called during the three days of last year's draft and emerged as prominent contributors. There are a number of prospects who could do the same thing.

Among those to be signed just after the 2015 draft include a couple of notable converted quarterbacks.

Auburn product Nick Marshall will move to cornerback with the Jacksonville Jaguars, per AL.com's Brandon Marcello. ESPN insider Adam Schefter reports that Michigan's Devin Gardner will play wide receiver for the New England Patriots.

Read on to find out where the other marquee incoming rookies wound up along with a breakdown of some of the biggest names.

Player	Position	School	NFL Team
Nick Marshall	CB	Auburn	Jacksonville Jaguars
Devin Gardner	WR	Michigan	New England Patriots
Blake Sims	QB	Alabama	Green Bay Packers (tryout)
Kevin White	CB	TCU	Atlanta Falcons
Josh Harper	WR	Fresno State	Oakland Raiders
Reese Dismukes	C	Auburn	Pittsburgh Steelers
Ray Drew	DE	Georgia	Miami Dolphins
Troy Hill	CB	Oregon	Cincinnati Bengals
Kurtis Drummond	S	Michigan State	Huston Texans
Malcolm Brown	RB	Texas	St. Louis Rams
Zach Vigil	ILB	Utah State	Miami Dolphins
Wes Saxton	TE	South Alabama	New York Jets
Cody Fajardo	QB	Nevada	Oakland Raiders
Mike Hull	ILB	Penn State	Miami Dolphins
Tyler Varga	RB/FB	Yale	Indianapolis Colts
Brandon Bridge	QB	South Alabama	Detroit Lions
Antwan Goodley	WR	Baylor	Dallas Cowboys
Connor Halliday	QB	Washington State	Washington Redskins
DaVaris Daniels	WR	Notre Dame	Minnesota Vikings
Trey Williams	RB	Texas A&M	Houston Texans
Bryan Bennett	QB	Southeastern Louisiana	Indianapolis Colts
Taiwan Jones	ILB	Michigan State	New York Jets
Sean Hickey	OT	Syracuse	New Orleans Saints
Nate Boyer	LS	Texas	Seattle Seahawks
John Crockett	RB	North Dakota State	Green Bay Packers
Trey DePriest	ILB	Alabama	Baltimore Ravens
Cody Prewitt	S	Ole Miss	Tennessee Titans
Justin Coleman	CB	Tennessee	Minnesota Vikings
Lynden Trail	DE	Norfolk State	Houston Texans
Zach Hodges	OLB	Harvard	Indianapolis Colts
Taylor Heinicke	QB	Old Dominion	Minnesota Vikings
Justin Cox	CB	Mississippi State	Kansas City Chiefs
Jean Sifrin	TE	Massachusetts	Indianapolis Colts
Titus Davis	WR	Central Michigan	San Diego Chargers
Leon Orr	DT	Florida	Oakland Raiders
Shane Carden	QB	East Carolina	Chicago Bears

Nick Marshall, CB, Jacksonville Jaguars

Julio Cortez/Associated Press

Marshall was more known for his athleticism than his passing ability at Auburn, so it makes sense that he feels able to make a drastic position conversion as he prepares for the NFL.

Pro Football Focus' Sam Monson poked a bit of fun at the Jaguars' QB situation in his take on Marshall going to Jacksonville:

The Jags need help in the secondary, particularly at cornerback. They did bring in Davon House from Green Bay but have few other strong contributors aside from Dwayne Gratz.

Based on the current depth chart, one has to believe Marshall has a shot at making the roster. One encouraging aspect of his landing in Jacksonville is that the Jags successfully converted Denard Robinson from QB to running back.

Although the position is different, Marshall can at least lean on Robinson and perhaps get on the same QB-esque perspective when breaking down NFL schematics from a skill-position perspective.

Robinson initially tried to catch on at wide receiver before settling into the backfield. Perhaps he can relate and help Marshall along as he competes for a spot on the team.

Devin Gardner, WR, New England Patriots

Leon Halip/Getty Images

If you believe Robinson is a bit of a stretch to be a mentor for Marshall in Jacksonville, there's no denying Patriots star receiver Julian Edelman can aid Gardner's transition to the pros.

Edelman was a seventh-round draft pick out of Kent State whom New England trained to become a receiver and dynamic return man. Now he is the favorite target of legendary QB Tom Brady, coming off a season with 92 receptions.

Joshua Henschke of the Detroit Free Press noted how Gardner also completed his education at Michigan on Saturday, which is the type of commitment he'll need to make it as a Patriot:

What makes Gardner an intriguing option is that he played in a pro-style offense under former coach Brady Hoke and can likely grasp at least some of the more intricate concepts of the Pats' precise system. Gardner is a supreme athlete who had four touchdowns on just 16 receptions in 2012.

Listed at 6'4" and 216 pounds, Gardner is a bigger target for Brady to throw to on the outside. There aren't really any such proven players on New England's roster right now other than Brandon LaFell.

Both Edelman and Danny Amendola are better-suited to play inside. Most undrafted free agents are considered long shots to make it, but Gardner has the physical tools to do so and a dearth of competition at the spot he'll probably play.

Zach Vigil, ILB, Miami Dolphins

Eugene Tanner/Associated Press

College production is one factor teams have to consider when evaluating prospects. Whatever Vigil lacks in size or athleticism, he makes up for by simply finding the football.  

In reporting the news of Miami acquiring Vigil, the Miami Herald's Barry Jackson highlighted how far Vigil went from humble beginnings during his career at Utah State:

But during his pro day, the 6'2", 240-pound Vigil showed that he has the measurable traits to make it at the next level. He ran a 4.67-second 40-yard dash and a 4.41-second 20-yard shuttle, showing respectable change of direction and straight-line speed.

Vigil comes from a program that produced All-Pro Seattle Seahawks middle linebacker Bobby Wagner, and he seems to have the leadership, intangibles and instincts to make an impact with the Dolphins.

Miami could have taken an inside linebacker in the draft, as it was a spot that it could have used depth in. Armed with a loaded defensive line that features Ndamukong Suh and second-round pick Jordan Phillips as new additions, the Dolphins' linebackers have to be thrilled at the opportunities those two should create for them to roam free and make plays.

Once training camp gets underway, it won't be a surprise if Vigil is climbing the depth chart and then proceeding to make a ton of plays in preseason games. Vigil could well be one of the biggest steals in the 2015 UDFA class.