Mike Mayock's fourth edition of his position-by-position prospect rankings for the 2014 NFL Draft:
Quarterback
1. Johnny Manziel, Texas A&M
2. Blake Bortles, Central Florida
3. Derek Carr, Fresno State
4. Jimmy Garoppolo, Eastern Illinois
T-5. Zach Mettenberger, LSU
T-5. Teddy Bridgewater, Louisville
New entry: Mettenberger
Rise: Carr (4), Garoppolo (T-5)
Fall: Bridgewater (3)
Out:AJ McCarron, Alabama (T-5)
Running back
1. Bishop Sankey, Washington
2. Carlos Hyde, Ohio State
3. Jeremy Hill, LSU
4. Tre Mason, Auburn
5. Andre Williams, Boston College
Wide receiver
1. Sammy Watkins, Clemson
2. Mike Evans, Texas A&M
3. Odell Beckham Jr., LSU
4. Brandin Cooks, Oregon State
T-5. Kelvin Benjamin, Florida State
T-5. Marqise Lee, USC
Rise: Beckham Jr. (T-5)
Fall: Lee (3)
Out:Jarvis Landry, LSU (T-5)
Tight end
1. Eric Ebron, North Carolina
2. Jace Amaro, Texas Tech
3. Austin Seferian-Jenkins, Washington
4. Troy Niklas, Notre Dame
5. C.J. Fiedorowicz, Iowa
Rise: Amaro (3)
Fall: Seferian-Jenkins (2)
Center
1. Marcus Martin, USC
2. Weston Richburg, Colorado State
3. Travis Swanson, Arkansas
4. Bryan Stork, Florida State
5. Gabe Ikard, Oklahoma
Guard
1. Xavier Su'a-Filo, UCLA
2. David Yankey, Stanford
3. Trai Turner, LSU
4. Gabe Jackson, Mississippi State
5. Chris Watt, Notre Dame
Offensive tackle
1. Greg Robinson, Auburn
2. Jake Matthews, Texas A&M
3. Taylor Lewan, Michigan
4. Zack Martin, Notre Dame
T-5. Joel Bitonio, Nevada
T-5. Cyrus Kouandjio, Alabama
New entry: Kouandjio
Defensive tackle
1. Aaron Donald, Pittsburgh
2. Ra'Shede Hageman, Minnesota
3. Timmy Jernigan, Florida State
4. Louis Nix, Notre Dame
5. Dominique Easley, Florida
New entry: Easley
Rise: Hageman (4)
Fall: Jernigan (2), Nix (3)
Out:Daniel McCullers, Tennessee (5)
Defensive end
1. Jadeveon Clowney, South Carolina
2. Kony Ealy, Missouri
3. Dee Ford, Auburn
4. Scott Crichton, Oregon State
5. Stephon Tuitt, Notre Dame
Outside linebacker
1. Khalil Mack, Buffalo
2. Anthony Barr, UCLA
3. Ryan Shazier, Ohio State
4. Demarcus Lawrence, Boise St.
5. Kyle Van Noy, BYU
New entry: Lawrence, Van Noy
Out:Trent Murphy, Stanford (4); Marcus Smith, Louisville (5)
Inside linebacker
1. C.J. Mosley, Alabama
2. Chris Borland, Wisconsin
3. Preston Brown, Louisville
4. Max Bullough, Michigan State
5. Shayne Skov, Stanford
Rise: Brown (5)
Fall: Skov (3)
Cornerback
1. Kyle Fuller, Virginia Tech
2. Darqueze Dennard, Michigan State
3. Justin Gilbert, Oklahoma State
4. Bradley Roby, Ohio State
5. Jason Verrett, TCU
Rise: Fuller (2)
Fall: Dennard (1)
Safety
1. Ha Ha Clinton-Dix, Alabama
2. Calvin Pryor, Louisville
3. Jimmie Ward, Northern Illinois
4. Deone Bucannon, Washington State
5. Lamarcus Joyner, Florida State