J'ai trouvé un article interressant et je ne savais pas dans quel sujet le poster donc j'en crée un nouveau...

2007 QB numbers: Adjusted for Strength of Schedule
Posted by Chase Stuart on Thursday, June 5, 2008

Over here, you can find a link to the 2007 statistical leaders. For example, the table below shows how many adjusted yards per pass attempt each QB (minimum 214 pass attempts) had last season. For those that don’t remember, adjusted yards per pass is calculated by taking a QB’s total passing yards, adjusting them by adding 10 points for every touchdown pass and subtracting 45 points for every interception, and dividing those adjusted yards by pass attempts.

Quarterback Att PYds TD INT AY/A
Tom Brady 578 4806 50 8 8.56
David Garrard 325 2509 18 3 7.86
Ben Roethlisberger 404 3154 32 11 7.37
Jeff Garcia 327 2440 13 4 7.31
Peyton Manning 515 4040 31 14 7.22
Tony Romo 520 4211 36 19 7.15
Brett Favre 535 4155 28 15 7.03
Donovan McNabb 473 3324 19 7 6.76
Matt Schaub 289 2241 9 9 6.66
Matt Hasselbeck 562 3966 28 12 6.59
Jay Cutler 467 3497 20 14 6.57
Kurt Warner 451 3417 27 17 6.48
Derek Anderson 527 3787 29 19 6.11
Carson Palmer 575 4131 26 20 6.07
Drew Brees 652 4423 28 18 5.97
Jon Kitna 561 4068 18 20 5.97
Philip Rivers 460 3152 21 15 5.84
Chad Pennington 260 1765 10 9 5.62
Jason Campbell 417 2700 12 11 5.58
Joey Harrington 348 2215 7 8 5.53
Sage Rosenfels 240 1684 15 12 5.39
Damon Huard 332 2257 11 13 5.37
Brian Griese 262 1803 10 12 5.20
Cleo Lemon 309 1773 6 6 5.06
Rex Grossman 225 1411 4 7 5.05
Eli Manning 529 3336 23 20 5.04
Kyle Boller 275 1743 9 10 5.03
Trent Edwards 269 1630 7 8 4.98
Tarvaris Jackson 294 1911 9 12 4.97
Vince Young 382 2546 9 17 4.90
Marc Bulger 378 2392 11 15 4.83
Brodie Croyle 224 1227 6 6 4.54
Kellen Clemens 250 1529 5 10 4.52
Trent Dilfer 219 1166 7 12 3.18

You might recall that last year, I wrote a post on Rearview Adjusted Yards per Attempt, where I adjusted the yards per attempt numbers for strength of schedule. Well I’m going to do that again this year. The math is pretty complicated, but can be found in the link to last year’s post. But I adjust each QB and each defense for strength of schedule, to get a true rating for each QB and defense. Let’s start with the defenses, first.

Team Rat Raw SOS
San Diego Chargers 1.92 1.28 0.64
Indianapolis Colts 1.84 1.64 0.20
Tennessee Titans 1.47 1.19 0.28
Tampa Bay Buccaneers 0.76 1.06 -0.30
Buffalo Bills 0.62 -0.05 0.67
Dallas Cowboys 0.61 0.59 0.02
Jacksonville Jaguars 0.60 0.40 0.20
Pittsburgh Steelers 0.50 0.63 -0.13
Washington Redskins 0.49 0.54 -0.05
New England Patriots 0.37 0.59 -0.21
Kansas City Chiefs 0.37 -0.20 0.56
Oakland Raiders 0.26 -0.08 0.34
Green Bay Packers 0.17 0.30 -0.14
Carolina Panthers 0.06 -0.10 0.16
Minnesota Vikings 0.02 -0.23 0.24
New York Giants -0.03 -0.34 0.32
Philadelphia Eagles -0.04 -0.36 0.32
Chicago Bears -0.14 -0.44 0.30
New York Jets -0.20 -0.25 0.05
Cleveland Browns -0.21 -0.03 -0.18
Cincinnati Bengals -0.28 -0.15 -0.14
Houston Texans -0.37 -0.78 0.41
Seattle Seahawks -0.40 0.46 -0.86
St. Louis Rams -0.45 -0.40 -0.06
Denver Broncos -0.62 -0.54 -0.09
Atlanta Falcons -0.64 -0.38 -0.26
Miami Dolphins -0.71 -1.09 0.37
Arizona Cardinals -0.84 -0.13 -0.71
Detroit Lions -0.99 -0.68 -0.31
San Francisco 49ers -1.15 -0.64 -0.51
Baltimore Ravens -1.23 -0.77 -0.46
New Orleans Saints -1.98 -1.48 -0.49

Let’s use the Saints as an example. The middle column shows the Saints actual performance against quarterbacks last year — New Orleans allowed 1.48 more adjusted yards per pass than the average team. The last column shows strength of schedule, where a negative number indicates an easy schedule. The Saints had a pretty easy schedule last year: they faced Byron Leftwich, Alex Smith, David Carr, Marc Bulger, Kyle Orton, Matt Moore, Vince Young, Chris Redman, Joey Harrington and Luke McNown, all players that were below average in 2007. So when you adjust New Orleans’ actual AY/A allowed number (1.48 below average) for their strength of schedule (0.49 AY/A below average), we can give a value of -1.98 for the Saints, meaning that’s what we’d have expected New Orleans to allow if they faced an average slate of quarterbacks.

As you can imagine, that’s really awful. The Saints pass defense last year looks historically bad without recognizing a below average schedule. Basically, the ‘07 Saints pass D was about as bad as it gets.

The Seahawks had the easiest SOS by far last year, facing a ton of awful QBs and only a couple of good ones. Gus Frerotte, Trent Dilfer, Alex Smith, A.J. Feeley, Matt Leinart, Marc Bulger, Matt Moore, Rex Grossman, Chris Redman and Luke McNown had the lion’s share of pass attempts them last year. Compare that to a team like the Bills, who faced Brady twice, Garrard, Cutler, Roethlisberger, Romo and McNabb. Buffalo’s pass defense ranks 13th in adjusted yards per attempt allowed using the raw data, and 5th in AY/A allowed once accounting for strength of schedule. With the additions of Leodis McKelvin in the draft, the return of Ko Simpson and Paul Posluszny from injury, the signing of Kawika Mitchell and the trade for Marcus Stroud, Buffalo’s defense could be excellent in 2008.

The Chargers, Chiefs, Texans and Dolphins also faced rough schedules in ‘07; the Cardinals, 49ers and Ravens also faced really easy ones. Keep that in mind when checking out their raw 2007 stats.

Back to the quarterbacks. Now that we have a ranking for each defense, we can adjust each pass attempt by every QB for the strength of schedule they faced. Here’s the list:

Rate Raw SOS
Tom Brady 2.90 2.71 0.19
David Garrard 2.57 2.01 0.56
Peyton Manning 1.67 1.38 0.30
Jay Cutler 1.31 0.72 0.59
Jeff Garcia 1.29 1.46 -0.17
Tony Romo 1.26 1.30 -0.04
Ben Roethlisberger 1.26 1.52 -0.26
Brett Favre 1.26 1.18 0.08
Donovan McNabb 0.93 0.92 0.01
Matt Schaub 0.89 0.82 0.08
Sage Rosenfels 0.57 -0.46 1.03
Matt Hasselbeck 0.21 0.75 -0.54
Jon Kitna 0.19 0.02 0.18
Drew Brees 0.18 0.10 0.08
Philip Rivers 0.17 -0.01 0.18
Kurt Warner 0.12 0.60 -0.48
Chad Pennington 0.08 -0.23 0.31
Carson Palmer 0.07 0.22 -0.15
Derek Anderson -0.01 0.27 -0.27
Jason Campbell -0.17 -0.27 0.10
Joey Harrington -0.20 -0.32 0.12
Damon Huard -0.23 -0.48 0.25
Kyle Boller -0.49 -0.82 0.33
Rex Grossman -0.59 -0.80 0.21
Vince Young -0.77 -0.95 0.18
Cleo Lemon -0.79 -0.79 0.00
Eli Manning -0.82 -0.80 -0.02
Brian Griese -0.88 -0.65 -0.24
Trent Edwards -0.93 -0.87 -0.06
Brodie Croyle -1.00 -1.31 0.31
Tarvaris Jackson -1.11 -0.88 -0.23
Kellen Clemens -1.32 -1.33 0.01
Marc Bulger -1.37 -1.02 -0.36
Trent Dilfer -3.07 -2.67 -0.40

The first thing that jumps off the page to me there is Derek Anderson. We all know he threw a ton of TDs and made the Pro Bowl, but in perhaps the most telling stat — adjusted yards per pass attempt, adjusted for strength of schedule — he was below average. Only five of his opponents had above average defenses — Buffalo, Pittsburgh (twice), New England and Oakland.

Who had the hardest schedules? Sage Rosenfels had a brutal schedule, but that doesn’t have much implication for 2008. Jay Cutler faced a really difficult schedule, too. He had only three games against a below average pass defense — Chicago, Houston and a four pass game against Detroit. To rank top five in his second year is very impressive, and bodes well for the future. Obviously Garrard looks even better, and he had a really hard schedule, too. Both of those guys could cause nightmares for AFC defenses for the next few years. Garrard won’t throw for six times as many TDs as INTs this year, but he’s got an awfully high perch from which to fall. He was incredibly valuable last year.

On the flip side, Hasselbeck and Warner had the easiest schedules last year, which drops their numbers from very impressive to just slightly above average.

http://www.pro-football-reference.com/blog/

je trouve ça assez interressant de voir ça sous cet angle...