NFL Mock Draft 2015: Projections for Top Prospects After Day 3 of Free Agency

It's been a busy few days in the NFL, with trades and signings impacting every team around the league. After the first three days of free agency, team needs have completely changed, which should impact the upcoming 2015 NFL draft.

The first few picks in the draft shouldn't change much, mostly because the teams selecting early on still have big needs, and the players available are too talented to pass up on. However, the rest of the first round could look different, and teams will make changes on their boards after bringing in big names at key positions.

Let's take a look at an updated mock draft after the first three days of free agency, followed by a breakdown of some of the picks that could have potentially changed in light of some of the recent signings.

Pick	Team	Selection
1	Tampa Bay Buccaneers	Jameis Winston, QB, Florida State
2	Tennessee Titans	Leonard Williams, DT, USC
3	Jacksonville Jaguars	Dante Fowler, OLB, Florida
4	Oakland Raiders	Kevin White, WR, West Virginia
5	Washington Redskins	Randy Gregoy, OLB, Nebraska
6	New York Jets	Marcus Mariota, QB, Oregon
7	Chicago Bears	Danny Shelton, DT, Washington
8	Atlanta Falcons	Alvin Dupree, OLB, Kentucky
9	New York Giants	Shane Ray, DE, Missouri
10	St. Louis Rams	Amari Cooper, WR, Alabama
11	Minnesota Vikings	Brandon Scherff, OT, Iowa
12	Cleveland Browns	DeVante Parker, WR, Louisville
13	New Orleans Saints	Vic Beasley, OLB, Clemson
14	Miami Dolphins	Trae Waynes, CB, Michigan State
15	San Francisco 49ers	Marcus Peters, CB, Washington
16	Houston Texans	Malcom Brown, DT, Texas
17	San Diego Chargers	Andrus Peat, OT, Stanford
18	Kansas City Chiefs	Landon Collins, SS, Alabama
19	Cleveland Browns (via Buffalo)	La'el Collins, OT, LSU
20	Philadelphia Eagles	Jalen Collins, CB, LSU
21	Cincinnati Bengals	Shaq Thompson, OLB, Washington
22	Pittsburgh Steelers	Eli Harold, OLB, Virginia
23	Detroit Lions	Ereck Flowers, OT, Miami (FL)
24	Arizona Cardinals	Arik Armstead, DT, Oregon
25	Carolina Panthers	D.J. Humphries, OT, Florida
26	Baltimore Ravens	Todd Gurley, RB, Georgia
27	Dallas Cowboys	Eddie Goldman, DT, Florida State
28	Denver Broncos	Maxx Williams, TE, Minnesota
29	Indianapolis Colts	Eric Kendricks, ILB, UCLA
30	Green Bay Packers	Devin Funchess, WR/TE, Michigan
31	New Orleans Saints (From SEA)	Dorial Green-Beckham, WR, Oklahoma
32	New England Patriots	Jordan Phillips, DT, Oklahoma

15. San Francisco 49ers: Marcus Peters, CB, Washington

Wide receiver is still a pretty big need for the San Francisco 49ers, but it's not an urgent one. The team was able to sign former Baltimore Ravens receiver Torrey Smith to a five-year deal, according to ESPN's Adam Schefter.

The 49ers are bound to draft another receiver, but they don't have to do that in the first round if Kevin White, Amari Cooper and DeVante Parker are already off the board. Instead, they can focus on taking the top player on their board at a position of need, Washington cornerback Marcus Peters.

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From a size standpoint, Peters has the ideal frame for an NFL cornerback at 6'0'' and 197 pounds. His size and aggressive mentality help him thrive in press coverage, and his ability to quickly turn his hips allows him to stick to his assignments.

If he were judged on talent alone, Peters would arguably be the top cornerback in this draft. But there are concerns about his character after he was dismissed from Washington's football team last season. In his first interview since being dismissed in November, Peters accepted the blame for everything, according to Tom Pelissero of USA Today:

"

It was an avalanche ready to happen, man. It was going to collapse sooner or later. 

I don't blame [Petersen] for anything. All I can blame is myself, because I made those decisions and I have to live with them. Now I'll have to man up and I've got to answer these questions in interviews, and all I can do is sit there and answer truthfully and honestly.

"

Peters will have a lot of questions to answer about his willingness to be a team player and learn from a coaching staff, but if he is ready to turn things around, the 49ers might be willing to take him with the No. 15 overall pick.

23. Detroit Lions: Ereck Flowers, OT, Miami (FL)

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It seemed like a certainty that the Detroit Lions would take a defensive lineman with their first-round pick due to the departures of Nick Fairley and Ndamukong Suh. According to MMQB's Peter King, the Lions instead decided to give their fourth- and fifth-round picks to the Ravens for Haloti Ngata.

With Ngata on the defensive line, the Lions can look at other needs with their first pick. On the other side of the ball, they could use another offensive tackle to pair with Riley Reiff on the right side of the line. If they want to improve their running game, which averaged just 88.9 yards per game last season, they'll need a right tackle that can win the battle in the trenches.

Miami's Ereck Flowers is the best available prospect to play right tackle with this selection. Despite coming in at 6'6'' and 329 pounds, Flowers is athletic enough to stay low and overpower defensive linemen. While a promising prospect as a run-blocker, there's still plenty of work to do in pass protection, especially when it comes to footwork and balance.

Bleacher Report's Matt Miller isn't as big a fan of Flowers as some are. Miller feels like he still has a lot of work to do before he can be a starting offensive tackle in the league.

There's no denying that Flowers has some work to do, but the Lions need a run-blocking tackle. If he can work on his pass protection, Flowers could have a chance to stay at the position for a long time.

31. New Orleans Saints (from Seattle): Dorial Green-Beckham, WR, Oklahoma

Perhaps the biggest move of the past week came on Tuesday, when Adam Schefter reported that the Seattle Seahawks had traded Max Unger and a first-round pick to the New Orleans Saints for Jimmy Graham. The Saints may have lost their top playmaker, but they were able to get a great center in Unger and another first-round pick in return.

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Originally, I had the Saints taking Cameron Erving out of Florida State to give them a legitimate option at center. With Unger now occupying that position, the Saints can try to look for another significant playmaker to give them a spark on offense.

It might be a risky pick, but the Saints could end up getting a major weapon if they take a chance on Dorial Green-Beckham.

There might not be a more physically gifted offensive prospect in this draft than Green-Beckham. Coming in at 6'5'' and 237 pounds, the former Oklahoma and Missouri wideout possesses a large catch radius and an ability to make the tough catches. Combine those qualities with his speed, and you have a legitimate vertical threat.

The major concern with Green-Beckham is his football IQ. The 21-year-old doesn't always read defenses well when trying to find openings, and his routes tend to be too sloppy and rounded off. Those concerns will continue to worry some scouts, but if the Saints really want to find a guy that can replace Graham as a red-zone threat, they should take a shot at Green-Beckham.