It's time to update the NFL Positive Impact Factor through 10 weeks of the 2012 NFL season. Tom Brady has taken over the top spot this week from rookie QB RGIII (rookies are in bold on this list). There was also plenty of movement in the Top 10 this week.

Here's the standings so far (movement in brackets):

1. Tom Brady, NE, 63.3 (up 2)

2. Robert Griffin III, WAS, 60.7 (down 1)

3. Aaron Rodgers, GB, 58.7 (up 1)

4. Matthew Stafford, DET, 55 (up 3)

5. Matt Schaub, HOU, 54.5 (up 1)

6. Matt Ryan, ATL, 54.2 (up 5)

7. Alex Smith, SF, 47.4 (up 5)

8. Sam Bradford, STL, 49.4 (up 5)

9. Ben Roethlisberger, PIT, 48.3 (down 7)

10. Peyton Manning, DEN, 48 (down 2)

11. Josh Freeman, TB, 47.5 (down 1)

12. Joe Flacco, BAL, 45.1 (up 3)

13. Drew Brees, NO, 45.1 (down 3)

14. Matt Hasselbeck, TEN, 43 (up 12)

15. Christian Ponder, MIN, 42.6 (up 5)

16. Russell Wilson, SEA, 42.5 (down 2)

17. Kevin Kolb, ARI, 41 (down 1)

18. Brandon Weeden, CLE, 40.5 (up 3)

19. Andy Dalton, CIN, 39.5 (up 4)

20. Eli Manning, NYG, 39.5 (down 11)

21. Ryan Tannehill, MIA, 38 (down 2)

22. Cam Newton, CAR, 37.6 (down 3)

23. Blaine Gabbert, JAC, 37.5 (up 2)

24. Michael Vick, PHI, 35.4 (up 4)

25. Andrew Luck, IND, 33.7 (up 2)

26. Tony Romo, DAL, 33.7 (up 4)

27. Jake Locker, TEN, 31.5 (up 4)

28. Carson Palmer, OAK, 30.3 (unchanged)

29. Ryan Fitzpatrick, BUF, 29.2 (down 7)

30. John Skelton, ARI, 26.4 (unranked)

31. Jay Cutler, CHI, 24.1 (down 7)

32. Philip Rivers, SD, 24.1 (unchanged)

33. Mark Sanchez, NYJ, 7.8 (down 4)

34. Matt Cassel, KC, 4.3 (down 1)

Tom Brady has claimed the top spot this week. Brady has produced a touchdown on 5.2% of his touches this season (7^th among NFL QBs). What has Brady ahead of the rookie RGIII is the lack of turnovers. Brady has produced 20 TDs while only turning the ball over three times (all INT).

The top rookie signal caller only fell one spot to No. 2. Griffin's completion percentage has come down recently but he trails only Peyton Manning in lowest percentage of negative plays (31.6). RGIII throws an incompletion, gets sacked or fumbles (negative plays) on 32.5 percent of his plays. For future reference, RGIII is well ahead of the top two rookie PIFs since 1992 (Cam Newton, 49.9 in 2011; Matt Ryan, 49.6, 2008).

Ben Roethlisberger looked to be challenging for first place a few weeks ago but has seen his sterling 5:1 TD to turnover ratio fall to 2.8:1 after recent games. Three of Roethlisberger's four interceptions have come in his last five games and so have both of his lost fumbles this season.

Other Notes:

Drew Brees and Aaron Rodgers are the only QBs producing TDs at better than six percent of their touches (Brees, 6.5; Rodgers 6.4).

John Skelton is last in TD percentage at 1.1 percent.

Mark Sanchez has a negative play on 53% of his touches in 2012, which is the worst among starting NFL QBs.

Matt Cassel leads QBs with 19 total turnovers (12 INT, 7 lost fumbles). Cassel has 2.7 turnovers to every TD he has produced this season.