The top players in the 2019 NFL draft class are making their intentions known as they declare early, sit out bowl games and start training for the grueling predraft process that will begin in early January. Pro scouts are doing their own work now as they evaluate and rank the top players in the country for the NFL draft.

The mid-December update of my big board adds many underclassmen who have declared for the draft, adjusts for injuries and sees many players emerge at the top of their positions. In a year with no clear-cut leader at many positions emerging before midseason, we also get clarity as the final month of the NFL calendar begins. 

Who is the top quarterback? Who are the best defenders in an absolutely loaded class?

It's all in here.

Top 50 Players

1. Nick Bosa, EDGE, Ohio State

2. Quinnen Williams, DL, Alabama

3. Josh Allen, EDGE, Kentucky

4. Devin White, LB, LSU

5. Greedy Williams, CB, LSU

6. Ed Oliver, DL, Houston

7. Rashan Gary, DL, Michigan

8. Trayvon Mullen, CB, Clemson

9. Jeffery Simmons, DL, Mississippi State

10. Jonah Williams, OT, Alabama

11. Deionte Thompson, S, Alabama

12. Noah Fant, TE, Iowa

13. Deandre Baker, CB, Georgia

14. Brian Burns, EDGE, FSU

15. Dwayne Haskins, QB, Ohio State

16. Byron Murphy, CB, Washington

17. Jachai Polite, EDGE, Florida

18. Clelin Ferrell, EDGE, Clemson

19. Dre'Mont Jones, DL, Ohio State

20. Dexter Lawrence, DL, Clemson

21. Montez Sweat, EDGE, Mississippi State

22. Daniel Jones, QB, Duke

23. Yodny Cajuste, OT, West Virginia

24. Raekwon Davis, DL, Alabama

25. Chase Winovich, EDGE, Michigan 

26. Derrick Brown, DL, Auburn

27. Will Grier, QB, West Virginia

28. N'Keal Harry, WR, Arizona State

29. Devin Bush, LB, Michigan

30. Oshane Ximines, EDGE, Old Dominion 

31. Greg Little, OT, Ole Miss

32. D.K. Metcalf, WR, Ole Miss

33. Elgton Jenkins, OC, Mississippi State

34. Mack Wilson, LB, Alabama

35. Marquise Brown, WR, Oklahoma

36. Jerry Tillery, DL, Notre Dame

37. A.J. Brown, WR, Ole Miss

38. Jawaan Taylor, OT, Florida

39. Jaylon Ferguson, EDGE, Louisiana Tech

40. Julian Love, CB, Notre Dame

41. Christian Wilkins, DL, Clemson

42. David Edwards, OT, Wisconsin

43. Irv Smith Jr., TE, Alabama

44. Zach Allen, EDGE, Boston College

45. Kaden Smith, TE, Auburn

46. Drew Lock, QB, Missouri

47. Kelvin Harmon, WR, North Carolina State

48. David Montgomery, RB, Iowa State

49. Damien Harris, RB, Alabama

50. Gerald Willis, DL, Miami (Fla.)

Top 10 Quarterbacks

Biggest Riser: Dwayne Haskins, Ohio State

Biggest Faller: Jarrett Stidham, Auburn

Most NFL-Ready: Daniel Jones, Duke

Best Arm: Drew Lock, Missouri

Best Runner: Nick Fitzgerald, Mississippi State

Best Potential: Haskins

Biggest Question Mark: Stidham

Biggest Sleeper: Tyree Jackson, Buffalo

1. Dwayne Haskins, Ohio State

2. Daniel Jones, Duke

3. Will Grier, West Virginia

4. Drew Lock, Missouri

5. Shea Patterson, Michigan

6. Tyree Jackson, Buffalo

7. Ryan Finley, NC State

8. Jarrett Stidham, Auburn

9. Nick Fitzgerald, Mississippi State

10. Clayton Thorson, Northwestern

Top 10 Running Backs

Biggest Riser: Darrell Henderson, Memphis

Biggest Faller: Bryce Love, Stanford

Most NFL-Ready: David Montgomery, Iowa State

Best Third-Down Back: Justice Hill, Oklahoma State

Best Speed: Love

Best Power: Benny Snell Jr., Kentucky

Best Potential: Rodney Anderson, Oklahoma

Biggest Question Mark: Anderson (injury history)

Biggest Sleeper: Devin Singletary, Florida Atlantic

1. David Montgomery, Iowa State

2. Damien Harris, Alabama

3. Darrell Henderson, Memphis

4. Benny Snell Jr., Kentucky

5. Rodney Anderson, Oklahoma

6. Bryce Love, Stanford

7. Justice Hill, Oklahoma State

8. Karan Higdon, Michigan

9. Mike Weber, Ohio State

10. Devin Singletary, FAU

Top 15 Wide Receivers

Biggest Riser: Anthony Johnson, Buffalo

Biggest Faller: A.J. Brown, Ole Miss

Most NFL-Ready: Kelvin Harmon, NC State

Best Outside Receiver: D.K. Metcalf, Ole Miss

Best Slot Receiver: Marquise Brown, Oklahoma

Best Hands: Collin Johnson, Texas

Best Route-Runner: Marquise Brown

Best Potential: Metcalf

Biggest Question Mark: Metcalf (injury history)

Biggest Sleeper: Deebo Samuel, South Carolina

1. N'Keal Harry, Arizona State

2. D.K. Metcalf, Ole Miss

3. Marquise Brown, Oklahoma

4. A.J. Brown, Ole Miss

5. Kelvin Harmon, NC State

6. Collin Johnson, Texas

7. JJ Arcega-Whiteside, Stanford

8. Deebo Samuel, South Carolina

9. Lil'Jordan Humphrey, Texas

10. Anthony Johnson, Buffalo

11. David Sills V, West Virginia

12. Parris Campbell, Ohio State

13. Andy Isabella, UMass

14. Emanuel Hall, Missouri

15. Jaylen Smith, Louisville

Top 10 Tight Ends

Biggest Riser: Josh Oliver, San Jose State

Biggest Faller: Alize Mack, Notre Dame

Most NFL-Ready: Noah Fant, Iowa

Best Slot Tight End: Fant

Best Hands: Fant

Best Route-Runner: Irv Smith Jr., Alabama

Best Blocker: Smith

Best Power: Smith

Biggest Question Mark: Foster Moreau, LSU

Biggest Sleeper: Dax Raymond, Utah State

1. Noah Fant, Iowa

2. Irv Smith Jr., Alabama

3. Kaden Smith, Stanford

4. Albert Okwuegbunam, Missouri

5. Caleb Wilson, UCLA

6. Josh Oliver, San Jose State

7. Foster Moreau, LSU

8. Tommy Sweeney, Boston College

9. Dax Raymond, Utah State

10. Alize Mack, Notre Dame

Top 10 Offensive Tackles

Biggest Riser: Yodny Cajuste, West Virginia

Biggest Faller: Isaiah Prince, Ohio State

Most NFL-Ready: Jonah Williams, Alabama

Best Run-Blocker: Williams

Best Pass-Blocker: Williams

Best Potential: Greg Little, Ole Miss

Biggest Question Mark: Bobby Evans, Oklahoma

Biggest Sleeper: Max Scharping, Northern Illinois

1. Jonah Williams, Alabama

2. Yodny Cajuste, West Virginia

3. Greg Little, Ole Miss

4. Jawaan Taylor, Florida

5. David Edwards, Wisconsin

6. Andre Dillard, Washington State

7. Max Scharping, Northern Illinois

8. Dennis Daley, South Carolina

9. Isaiah Prince, Ohio State

10. Bobby Evans, Oklahoma 

Top 10 Offensive Guards

Biggest Riser: Dru Samia, Oklahoma    

Biggest Faller: Martez Ivey, Florida

Most NFL-Ready: Michael Jordan, Ohio State

Best Run-Blocker: Michael Dieter, Wisconsin

Best Pass-Blocker: Dalton Risner, Kansas State

Best Potential: Jordan

Biggest Question Mark: Nate Davis, UNC-Charlotte

Biggest Sleeper: Chris Lindstrom, Boston College

1. Michael Jordan, Ohio State

2. Dalton Risner, Kansas State

3. Nate Herbig, Stanford

4. Michael Deiter, Wisconsin

5. Dru Samia, Oklahoma

6. Chris Lindstrom, Boston College

7. Nate Davis, UNC-Charlotte

8. Hjalte Froholdt, Arkansas

9. Beau Benzschawel, Wisconsin

10. Ben Powers, Oklahoma

Top 10 Centers

Biggest Riser: Garrett Bradbury, NC State

Biggest Faller: Nick Linder, Indiana

Most NFL-Ready: Elgton Jenkins, Mississippi State

Best Run-Blocker: Jenkins

Best Pass-Blocker: Jenkins

Best Potential: Jenkins

Biggest Question Mark: Ross Pierschbacher, Alabama

Biggest Sleeper: Drew Kyser, Memphis

1. Elgton Jenkins, Mississippi State

2. Garrett Bradbury, NC State

3. Ross Pierschbacher, Alabama

4. Jon Baker, Boston College

5. Jesse Burkett, Stanford

6. Nick Linder, Indiana

7. Alec Eberle, Florida State

8. Lamont Gaillard, Georgia

9. Drew Kyser, Memphis

10. Toa Lobendahn, USC

Top 15 Defensive Linemen

Biggest Riser: Quinnen Williams, Alabama

Biggest Faller: Isaiah Buggs, Alabama

Most NFL-Ready: Williams

Best Run-Stopper: Williams

Best Pass-Rusher: Rashan Gary, Michigan

Best Potential: Ed Oliver, Houston

Biggest Question Mark: Jeffery Simmons, Mississippi State

Biggest Sleeper: Khalen Saunders, Western Illinois

1. Quinnen Williams, Alabama

2. Ed Oliver, Houston

3. Rashan Gary, Michigan

4. Jeffery Simmons, Mississippi State

5. Dre'Mont Jones, Ohio State

6. Dexter Lawrence, Clemson

7. Raekwon Davis, Alabama

8. Derrick Brown, Auburn

9. Jerry Tillery, Notre Dame

10. Christian Wilkins, Clemson

11. Gerald Willis, Miami (Fla.)

12. Terry Beckner Jr., Missouri

13. Isaiah Buggs, Alabama

14. Demarcus Christmas, Florida State

15. Khalen Saunders, Western Illinois

Top 15 Edge-Rushers

Biggest Riser: Josh Allen, Kentucky

Biggest Faller: None

Most NFL-Ready: Nick Bosa, Ohio State

Best Run-Stopper: Clelin Ferrell, Clemson

Best Pass-Rusher: Bosa

Best Potential: Bosa

Biggest Question Mark: Brian Burns, Florida State

Biggest Sleeper: Oshane Ximines, Old Dominion

1. Nick Bosa, Ohio State

2. Josh Allen, Kentucky

3. Brian Burns, Florida State

4. Jachai Polite, Florida

5. Clelin Ferrell, Clemson

6. Montez Sweat, Mississippi State

7. Chase Winovich, Michigan

8. Oshane Ximines, Old Dominion

9. Jaylon Ferguson, Louisiana Tech

10. Zach Allen, Boston College

11. D'Andre Walker, Georgia

12. Ben Banogu, TCU

13. Anfernee Jennings, Alabama

14. Charles Omenihu, Texas

15. Joe Jackson, Miami (Fla.)

Top 10 Linebackers

Biggest Riser: Devin Bush, Michigan

Biggest Faller: None

Most NFL-Ready: Devin White, LSU

Best Run-Stopper: Mack Wilson, Alabama

Best Pass Coverage: Dakota Allen, Texas Tech

Best Pass-Rusher: White

Best Potential: White

Biggest Question Mark: Shaquille Quarterman, Miami (Fla.)

Biggest Sleeper: Sutton Smith, Northern Illinois

1. Devin White, LSU

2. Devin Bush, Michigan

3. Mack Wilson, Alabama

4. Dakota Allen, Texas Tech

5. T.J. Edwards, Wisconsin

6. Shaquille Quarterman, Miami

7. Cameron Smith, USC

8. Khalil Hodge, Buffalo

9. Te'von Coney, Notre Dame

10. Sutton Smith, Northern Illinois

Top 15 Cornerbacks

Biggest Riser: Byron Murphy, Washington    

Biggest Faller: Damon Arnette, Ohio State

Most NFL-Ready: Greedy Williams, LSU

Best Slot Cornerback: Murphy

Best Man Coverage: Williams

Best Zone Coverage: Deandre Baker, Georgia

Best Potential: Williams

Biggest Question Mark: Kendall Sheffield, Ohio State

Biggest Sleeper: Rock Ya-Sin, Temple

1. Greedy Williams, LSU

2. Trayvon Mullen, Clemson

3. Deandre Baker, Georgia

4. Byron Murphy, Washington

5. Julian Love, Notre Dame

6. Damon Arnette, Ohio State

7. Kendall Sheffield, Ohio State

8. Jamal Peters, Mississippi State

9. Michael Jackson, Miami

10. Amani Oruwariye, Penn State

11. Sean Bunting, Central Michigan

12. Rock Ya-Sin, Temple

13. Kris Boyd, Texas

14. Mark Gilbert, Duke

15. Blessuan Austin, Rutgers

Top 10 Safeties

Biggest Riser: Nasir Adderley, Delaware

Biggest Faller: Brandon Jones, Texas

Most NFL-Ready: Deionte Thompson, Alabama

Best Coverage: Thompson

Best Strong Safety: Taylor Rapp, Washington

Best Free Safety: Thompson

Best Hybrid Defender: Johnathan Abram, Mississippi State

Best Run-Stopper: Abram

Best Potential: Thompson

Biggest Question Mark: Mark McLaurin, Mississippi State 

Biggest Sleeper: Adderley

1. Deionte Thompson, Alabama

2. Taylor Rapp, Washington

3. Johnathan Abram, Mississippi State

4. Nasir Adderley, Delaware

5. Lukas Denis, Boston College

6. Jaquan Johnson, Miami

7. Chauncey Gardner-Johnson, Florida

8. Brandon Jones, Texas

9. Mark McLaurin, Mississippi State

10. Will Harris, Boston College