The best
Ronde Barber/Phillip Buchanon: Barber had a fantastic 2007 season with a 4.9 YPA and a 44.9 percent success rate, but it's not like Buchanon simply rode on Barber's superb metric coattails. Buchanon posted a terrific 6.4 YPA and nearly matched Barber's success percentage with a rate of 44.8.
To put their success marks another way, consider that there were only 64 successful plays against Barber and Buchanon all season. That means that, on average, the other team's offense could expect only two positive plays to each of its wideouts on any given Sunday.
Trumaine McBride/Charles Tillman: As good as Nathan Vasher is, this combination's No. 2 showing in this metric illustrates that Chicago did not miss Vasher nearly as much as is generally thought. If Vasher comes back fully healthy this year, this cornerback trio could make a strong case for being the best in the NFL.
Jabari Greer/Terrence McGee: This tandem's statistics provide some proof that the Bills are quietly building one of the best secondaries in the league. If Buffalo can at the very least develop Leodis McKelvin, Reggie Corner and/or Ashton Youboty into an effective nickel/dime duo, there won't be a real coverage weakness for any offense to target.
The worst
Champ Bailey/Dre' Bly: The buzz going into the 2007 season was that Bailey and Bly might be the best starting battery around, but it didn't turn out anywhere near that way. A lot of this poor performance was on Bly's shoulders, as evidenced by his 8.8 YPA, but Bailey has to take some of blame as well. His 7.8 YPA was his worst since 2005. Both will have to improve if Denver's defense is going to see a turnaround in 2008.
Al Harris/Charles Woodson: Harris landed a starting spot in the Pro Bowl, and Woodson had a lot of support for a Hawaii trip as well, but their combined totals placed them 27th in this category. Most of that showing was the result of Harris' 9.7 YPA, a number that begs the question as to why he was given that starting Pro Bowl spot in the first place.
2007 Team Cornerbacks Net Att Net Yds YPA
Tampa Bay Ronde Barber/Phillip Buchanon 116 671 5.8
Washington Fred Smoot/Shawn Springs 158 928 5.9
Chicago Trumaine McBride/Charles Tillman 133 808 6.1
Buffalo Jabari Greer/Terrence McGee 169 1,084 6.4
Miami Will Allen/Michael Lehan 129 832 6.4
Cleveland Leigh Bodden/Eric Wright 179 1,226 6.8
Seattle Kelly Jennings/Marcus Trufant 206 1,426 6.9
Detroit Fernando Bryant/Travis Fisher 132 926 7.0
Dallas Anthony Henry/Terence Newman/Jacques Reeves 231 1,630 7.1
Houston Fred Bennett/DeMarcus Faggins/Dunta Robinson 156 1,111 7.1
Indianapolis Kelvin Hayden/Marlin Jackson 105 748 7.1
Pittsburgh Ike Taylor/Deshea Townsend 180 1,329 7.4
Cincinnati Leon Hall/Johnathan Joseph/Deltha O'Neal 232 1,759 7.6
Carolina Chris Gamble/Ken Lucas 130 988 7.6
San Francisco Nate Clements/Walt Harris 168 1,280 7.6
San Diego Antonio Cromartie/Drayton Florence/Quentin Jammer 203 1,565 7.7
Philadelphia Sheldon Brown/Lito Sheppard 144 1,119 7.8
Arizona Eric Green/Rod Hood/Antrel Rolle 222 1,741 7.8
Tennessee Cortland Finnegan/Nick Harper 171 1,346 7.9
Oakland Nnamdi Asomugha/Stanford Routt 90 715 7.9
N.Y. Jets David Barrett/Hank Poteat/Darrelle Revis 182 1,462 8.0
N.Y. Giants Sam Madison/Aaron Ross 132 1,065 8.1
Jacksonville Rashean Mathis/Brian Williams 140 1,148 8.2
New England Ellis Hobbs/Asante Samuel 163 1,359 8.3
Denver Champ Bailey/Dre' Bly 139 1,162 8.4
Atlanta DeAngelo Hall/Chris Houston 140 1,174 8.4
Green Bay Al Harris/Charles Woodson 131 1,123 8.6
Minnesota Cedric Griffin/Marcus McCauley/Antoine Winfield 214 1,894 8.9
St. Louis Ron Bartell/Fakhir Brown 142 1,268 8.9
Kansas City Ty Law/Patrick Surtain 115 1,050 9.1
Baltimore Corey Ivy/Chris McAlister 118 1,123 9.5
New Orleans Jason David/Mike McKenzie 153 1,511 9.9
Glossary of terms
The word "tandem" technically means this should include only two players per team, but in a number of cases, injuries forced more than two players to split the starting spots. Because of this, I set the qualifying mark for this analysis at eight starts.
This did mean that in a couple of instances, a team had a nickel cornerback who started a few games at the nickel spot and a few others at one of the standard spots and accordingly ended up being listed as a starter. However, this beat the alternate method of using the attempt mark, as that would have included many more nickel backs as starters and, if the bar were set high enough, might have excluded some starters such as Nnamdi Asomugha (who had only 35 passes thrown his way).
As was the case in the rest of this series, the yardage totals include "pass in the air" penalty attempts and yards (i.e., penalty yards from pass interference, defensive holding, illegal contact, etc., have been added to each player's yardage stats).
KC Joyner, aka the Football Scientist, is a regular contributor to ESPN Insider. His core coverage metrics for all skill-position players and cornerbacks will be available in the ESPN Fantasy Football Magazine, which will be released this summer. His 2008 releases, "Scientific Football 2008" and "Blindsided: Why The Left Tackle is Overrated and Other Contrarian Football Thoughts," are available for preorder. For more, check out KC's Web site, www.thefootballscientist.com.
Ronde Barber/Phillip Buchanon: Barber had a fantastic 2007 season with a 4.9 YPA and a 44.9 percent success rate, but it's not like Buchanon simply rode on Barber's superb metric coattails. Buchanon posted a terrific 6.4 YPA and nearly matched Barber's success percentage with a rate of 44.8.
To put their success marks another way, consider that there were only 64 successful plays against Barber and Buchanon all season. That means that, on average, the other team's offense could expect only two positive plays to each of its wideouts on any given Sunday.
Trumaine McBride/Charles Tillman: As good as Nathan Vasher is, this combination's No. 2 showing in this metric illustrates that Chicago did not miss Vasher nearly as much as is generally thought. If Vasher comes back fully healthy this year, this cornerback trio could make a strong case for being the best in the NFL.
Jabari Greer/Terrence McGee: This tandem's statistics provide some proof that the Bills are quietly building one of the best secondaries in the league. If Buffalo can at the very least develop Leodis McKelvin, Reggie Corner and/or Ashton Youboty into an effective nickel/dime duo, there won't be a real coverage weakness for any offense to target.
The worst
Champ Bailey/Dre' Bly: The buzz going into the 2007 season was that Bailey and Bly might be the best starting battery around, but it didn't turn out anywhere near that way. A lot of this poor performance was on Bly's shoulders, as evidenced by his 8.8 YPA, but Bailey has to take some of blame as well. His 7.8 YPA was his worst since 2005. Both will have to improve if Denver's defense is going to see a turnaround in 2008.
Al Harris/Charles Woodson: Harris landed a starting spot in the Pro Bowl, and Woodson had a lot of support for a Hawaii trip as well, but their combined totals placed them 27th in this category. Most of that showing was the result of Harris' 9.7 YPA, a number that begs the question as to why he was given that starting Pro Bowl spot in the first place.
2007 Team Cornerbacks Net Att Net Yds YPA
Tampa Bay Ronde Barber/Phillip Buchanon 116 671 5.8
Washington Fred Smoot/Shawn Springs 158 928 5.9
Chicago Trumaine McBride/Charles Tillman 133 808 6.1
Buffalo Jabari Greer/Terrence McGee 169 1,084 6.4
Miami Will Allen/Michael Lehan 129 832 6.4
Cleveland Leigh Bodden/Eric Wright 179 1,226 6.8
Seattle Kelly Jennings/Marcus Trufant 206 1,426 6.9
Detroit Fernando Bryant/Travis Fisher 132 926 7.0
Dallas Anthony Henry/Terence Newman/Jacques Reeves 231 1,630 7.1
Houston Fred Bennett/DeMarcus Faggins/Dunta Robinson 156 1,111 7.1
Indianapolis Kelvin Hayden/Marlin Jackson 105 748 7.1
Pittsburgh Ike Taylor/Deshea Townsend 180 1,329 7.4
Cincinnati Leon Hall/Johnathan Joseph/Deltha O'Neal 232 1,759 7.6
Carolina Chris Gamble/Ken Lucas 130 988 7.6
San Francisco Nate Clements/Walt Harris 168 1,280 7.6
San Diego Antonio Cromartie/Drayton Florence/Quentin Jammer 203 1,565 7.7
Philadelphia Sheldon Brown/Lito Sheppard 144 1,119 7.8
Arizona Eric Green/Rod Hood/Antrel Rolle 222 1,741 7.8
Tennessee Cortland Finnegan/Nick Harper 171 1,346 7.9
Oakland Nnamdi Asomugha/Stanford Routt 90 715 7.9
N.Y. Jets David Barrett/Hank Poteat/Darrelle Revis 182 1,462 8.0
N.Y. Giants Sam Madison/Aaron Ross 132 1,065 8.1
Jacksonville Rashean Mathis/Brian Williams 140 1,148 8.2
New England Ellis Hobbs/Asante Samuel 163 1,359 8.3
Denver Champ Bailey/Dre' Bly 139 1,162 8.4
Atlanta DeAngelo Hall/Chris Houston 140 1,174 8.4
Green Bay Al Harris/Charles Woodson 131 1,123 8.6
Minnesota Cedric Griffin/Marcus McCauley/Antoine Winfield 214 1,894 8.9
St. Louis Ron Bartell/Fakhir Brown 142 1,268 8.9
Kansas City Ty Law/Patrick Surtain 115 1,050 9.1
Baltimore Corey Ivy/Chris McAlister 118 1,123 9.5
New Orleans Jason David/Mike McKenzie 153 1,511 9.9
Glossary of terms
The word "tandem" technically means this should include only two players per team, but in a number of cases, injuries forced more than two players to split the starting spots. Because of this, I set the qualifying mark for this analysis at eight starts.
This did mean that in a couple of instances, a team had a nickel cornerback who started a few games at the nickel spot and a few others at one of the standard spots and accordingly ended up being listed as a starter. However, this beat the alternate method of using the attempt mark, as that would have included many more nickel backs as starters and, if the bar were set high enough, might have excluded some starters such as Nnamdi Asomugha (who had only 35 passes thrown his way).
As was the case in the rest of this series, the yardage totals include "pass in the air" penalty attempts and yards (i.e., penalty yards from pass interference, defensive holding, illegal contact, etc., have been added to each player's yardage stats).
KC Joyner, aka the Football Scientist, is a regular contributor to ESPN Insider. His core coverage metrics for all skill-position players and cornerbacks will be available in the ESPN Fantasy Football Magazine, which will be released this summer. His 2008 releases, "Scientific Football 2008" and "Blindsided: Why The Left Tackle is Overrated and Other Contrarian Football Thoughts," are available for preorder. For more, check out KC's Web site, www.thefootballscientist.com.


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