user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: Who, in the sport of football, has been a coach for the Carolina Panthers and also played on an offensive line? 
Knowledge Triplets: Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Oakland Raiders, 2008-11-09
g.121g7ncl, american_football.football_player.position_s, Mark Stepnoski
g.121g7ncl, american_football.football_player.position_s, Steve Wisniewski
Terry Tausch, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhnc
g.121g7ncl, american_football.football_player.position_s, Bulldog Turner
Keith Van Horne, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.fight_song, Sweet Caroline
Levi Jones, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Todd McDonald
g.121g7ncl, american_football.football_player.position_s, Clyde Brock
g.121g7ncl, american_football.football_player.position_s, Jeff Sevy
John H. Outland, people.person.nationality, United States of America
Len Szafaryn, people.person.nationality, United States of America
Dave Fiore, people.person.nationality, United States of America
Harry Smith, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2009-09-20
Todd Fordham, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at San Diego Chargers, 2008-09-07
g.121g7ncl, american_football.football_player.position_s, Randy Cross
g.121g7ncl, american_football.football_player.position_s, Alfred McCullough
Carolina Panthers, sports.sports_team.season_record, m.075fhqc
Jon Asamoah, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Paul Madsen
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.0j81th4
Parker Graham, people.person.nationality, United States of America
Tom Nalen, people.person.nationality, United States of America
m.0crt4n3, sports.sports_league_participation.team, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Julian Vandervelde
Volney Peters, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Rich Ranglin
g.121g7ncl, american_football.football_player.position_s, Todd Fordham
Deral Teteak, people.person.nationality, United States of America
Jon Heidenreich, people.person.nationality, United States of America
Kendall Gammon, people.person.nationality, United States of America
Richard Rainey, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Dominic Alford
Dominic Alford, people.person.nationality, United States of America
Chris Brown, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Ernie Wright
g.121g7ncl, american_football.football_player.position_s, Lou Creekmur
Carolina Panthers, american_football.football_historical_coach_position.team, m.04xg_yl
g.121g7ncl, american_football.football_player.position_s, Les Miles
g.121g7ncl, american_football.football_player.position_s, Billy Shields
g.121g7ncl, american_football.football_player.position_s, David Evans
g.121g7ncl, american_football.football_player.position_s, Kevin Gogan
Jeff Blackshear, people.person.nationality, United States of America
Harley Sewell, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Troy Reddick
Ron Hallstrom, people.person.nationality, United States of America
Troy Kropog, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Keith Dorney
g.121g7ncl, american_football.football_player.position_s, Lomas Brown
g.121g7ncl, american_football.football_player.position_s, Ryan Kalnins
Allan Kennedy, people.person.nationality, United States of America
Braxston Cave, people.person.nationality, United States of America
m.0crt99h, sports.sports_league_participation.team, Carolina Panthers
Russell Maryland, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Gerry Mullins
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv74x
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Dallas Cowboys, 2009-09-28
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yl
g.121g7ncl, american_football.football_player.position_s, Allan Kennedy
g.121g7ncl, american_football.football_player.position_s, Larry McCarren
g.121g7ncl, american_football.football_player.position_s, Herman Clark
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2008-12-28
g.121g7ncl, american_football.football_player.position_s, Rob Murphy
Maurice Williams, people.person.nationality, United States of America
Wade Smith, people.person.nationality, United States of America
Ron Rivera, american_football.football_coach.current_team_head_coached, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Troy Kropog
Dale Hellestrae, people.person.nationality, United States of America
Damion McIntosh, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Kyle Hill
Kyle Hill, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhn3
g.121g7ncl, american_football.football_player.position_s, Tyrone McGriff
Carolina Panthers, american_football.football_team.home_games, Minnesota Vikings at Carolina Panthers, 2009-12-20
g.121g7ncl, american_football.football_player.position_s, Daniel Whitaker
g.121g7ncl, american_football.football_player.position_s, Adam Schreiber
United States of America, people.person.nationality, George Seifert
Carolina Panthers, american_football.football_team.home_games, Chicago Bears at Carolina Panthers, 2008-09-14
g.121g7ncl, american_football.football_player.position_s, Mark Rodenhauser
Justin Strzelczyk, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, Miami Dolphins at Carolina Panthers, 2009-11-19
Ken Bowman, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhpm
g.121g7ncl, american_football.football_player.position_s, Travis Cross
Carolina Panthers, sports.professional_sports_team.draft_picks, m.010hbtxb
Carolina Panthers, sports.sports_team.location, Charlotte
Carolina Panthers, sports.sports_team.colors, Black
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Atlanta Falcons, 2008-11-23
Carolina Panthers, sports.sports_team.season_record, m.075fhnw
Jeremy Bridges, people.person.nationality, United States of America
Heath Irwin, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Vince Promuto
g.121g7ncl, american_football.football_player.position_s, Jon Asamoah
g.121g7ncl, american_football.football_player.position_s, Luis Sharpe
g.121g7ncl, american_football.football_player.position_s, Deral Teteak
Harris Barton, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, George T. Barclay
Tom Condon, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2009-12-27
Bulldog Turner, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Arizona Cardinals, 2009-11-01
Carolina Panthers, american_football.football_team.home_games, Detroit Lions at Carolina Panthers, 2008-11-16
g.121g7ncl, american_football.football_player.position_s, Paul Zimmerman
Joe Andruzzi, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Levi Jones
Carolina Panthers, sports.sports_team.season_record, m.075fhmt
Lomas Brown, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhqm
Ryan Gibeley, people.person.nationality, United States of America
Bob Yates, people.person.nationality, United States of America
Vince Promuto, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Jets, 2009-11-29
g.121g7ncl, american_football.football_player.position_s, Wade Smith
Herbert Scott, people.person.nationality, United States of America
Dan Dierdorf, people.person.nationality, United States of America
Boob Darling, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Boob Darling
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv5vc
g.121g7ncl, american_football.football_player.position_s, Russell Maryland
m.0j81th4, american_football.football_historical_coach_position.coach, John Fox
Carolina Panthers, sports.sports_team.season_record, m.075fhmk
Ryan Tucker, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Marcus Cannon
Tony Ugoh, people.person.nationality, United States of America
Doug Widell, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Tom Nalen
Stephon Heyer, people.person.nationality, United States of America
Troy Reddick, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.team_mascot, Sir Purr
g.121g7ncl, american_football.football_player.position_s, Ray Donaldson
g.121g7ncl, american_football.football_player.position_s, Dick Stanfel
Tyson Walter, people.person.nationality, United States of America
Adam Schreiber, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New England Patriots, 2009-12-13
g.121g7ncl, american_football.football_player.position_s, Mike Ingersoll
m.04xg_yl, american_football.football_historical_coach_position.team, Carolina Panthers
Walt Kiesling, people.person.nationality, United States of America
John Greco, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhq3
Travis Cross, people.person.nationality, United States of America
Stew Barber, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, John Madden
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv59w
g.121g7ncl, american_football.football_player.position_s, Ernie McMillan
Paul Zimmerman, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Jeff Dellenbach
m.04xg_yc, american_football.football_historical_coach_position.team, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Stephon Heyer
Carolina Panthers, american_football.football_team.home_games, Washington Redskins at Carolina Panthers, 2009-10-11
Al Bemiller, people.person.nationality, United States of America
Dave Sparks, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Chad Clifton
g.121g7ncl, american_football.football_player.position_s, Chris Myers
g.121g7ncl, american_football.football_player.position_s, Al Blozis
g.121g7ncl, american_football.football_player.position_s, Adam Treu
g.121g7ncl, american_football.football_player.position_s, Fred Quillan
Ross Carter, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.championships, 2004 NFC Championship Game
Jason Pinkston, people.person.nationality, United States of America
Ernie Wright, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.current_head_coach, Ron Rivera
Carolina Panthers, american_football.football_team.home_games, Arizona Cardinals at Carolina Panthers, 2008-10-26
g.121g7ncl, american_football.football_player.position_s, Doug Widell
Jerry Richardson, sports.sports_team_owner.teams_owned, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Richard Rainey
m.0crtfg9, sports.sports_league_participation.team, Carolina Panthers
Chad Clifton, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Adrian Klemm
Barry Switzer, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Jamey Richard
Mark Stepnoski, people.person.nationality, United States of America
Algy Clark, people.person.nationality, United States of America
Kevin Gogan, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Jerry Fontenot
Herman Clark, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Algy Clark
James Campen, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Walt Kiesling
g.121g7ncl, american_football.football_player.position_s, Kevin Mawae
g.121g7ncl, american_football.football_player.position_s, Dale Hellestrae
g.121g7ncl, american_football.football_player.position_s, Dave Sparks
Carolina Panthers, sports.sports_team.season_record, m.075fhm9
Todd McDonald, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, Denver Broncos at Carolina Panthers, 2008-12-14
Mark Rodenhauser, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, John Watson
g.121g7ncl, american_football.football_player.position_s, Tom Condon
Steve Wisniewski, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.colors, White
George Kunz, people.person.nationality, United States of America
Keith Dorney, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New Orleans Saints, 2009-11-08
Adrian Klemm, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Ross Carter
Kirk Scrafford, people.person.nationality, United States of America
Chris Chester, people.person.nationality, United States of America
Kevin Mawae, people.person.nationality, United States of America
Adam Treu, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Ryan Tucker
Mike Durrette, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Will Wilson
Mike Ingersoll, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.coaches, m.0_3r22s
g.121g7ncl, american_football.football_player.position_s, Chris Chester
Carolina Panthers, american_football.football_team.conference, National Football Conference
Brad Badger, people.person.nationality, United States of America
Nick Buoniconti, people.person.nationality, United States of America
Luis Sharpe, people.person.nationality, United States of America
Rob Murphy, people.person.nationality, United States of America
Alfred McCullough, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Barry Switzer
Tom Cable, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Dick Himes
g.121g7ncl, american_football.football_player.position_s, Ron Hallstrom
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bj8xw
Ryan Kalnins, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Joe Andruzzi
g.121g7ncl, american_football.football_player.position_s, Pat Howell
Chris Myers, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at New York Giants, 2008-12-21
George T. Barclay, people.person.nationality, United States of America
Tom Rafferty, people.person.nationality, United States of America
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bj8x3
g.121g7ncl, american_football.football_player.position_s, Jason Pinkston
g.121g7ncl, american_football.football_player.position_s, Jim Ray Smith
g.121g7ncl, american_football.football_player.position_s, Jon Heidenreich
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2008-10-12
m.04xg_yl, american_football.football_coach.coaching_history, George Seifert
g.121g7ncl, american_football.football_player.position_s, Brad Benson
g.121g7ncl, american_football.football_player.position_s, James Campen
g.121g7ncl, american_football.football_player.position_s, Volney Peters
g.121g7ncl, american_football.football_player.position_s, Len Szafaryn
Randy Cross, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Damion McIntosh
Rich Ranglin, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.league, m.0crt4n3
g.121g7ncl, american_football.football_player.position_s, Tyson Walter
Paul Madsen, people.person.nationality, United States of America
Dick Himes, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Jeremy Bridges
g.121g7ncl, american_football.football_player.position_s, Justin Strzelczyk
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05cdl6p
g.121g7ncl, american_football.football_player.position_s, Ryan Miller
Carolina Panthers, sports.sports_team.sport, American football
Jeff Sevy, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Keith Van Horne
Dick Stanfel, people.person.nationality, United States of America
John Watson, people.person.nationality, United States of America
Steve Riley, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Heath Irwin
Gerry Mullins, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Herbert Scott
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2009-12-06
Marcus Cannon, people.person.nationality, United States of America
Larry McCarren, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.division, NFC South
Bob Penchion, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Chris Brown
g.121g7ncl, american_football.football_player.position_s, Harris Barton
Carolina Panthers, sports.sports_team.colors, Blue
g.121g7ncl, american_football.football_player.position_s, Kirk Scrafford
Lou Creekmur, people.person.nationality, United States of America
Jerry Fontenot, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Trevor Matich
g.121g7ncl, american_football.football_player.position_s, Mike Durrette
Carolina Panthers, sports.sports_team.season_record, m.075fhnm
Carolina Panthers, sports.sports_team.season_record, m.075fhp3
Lennie Friedman, people.person.nationality, United States of America
Todd Weiner, people.person.nationality, United States of America
Les Miles, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2009-11-15
Ephraim Salaam, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhpc
g.121g7ncl, american_football.football_player.position_s, Donald Stephenson
g.121g7ncl, american_football.football_player.position_s, Dan Dierdorf
Jeff Dellenbach, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Harley Sewell
g.121g7ncl, american_football.football_player.position_s, George Kunz
g.121g7ncl, american_football.football_player.position_s, Stew Barber
Ken Iman, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Maurice Williams
Ray Donaldson, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Randall McDaniel
g.121g7ncl, american_football.football_player.position_s, Lennie Friedman
m.0j81th4, american_football.football_historical_coach_position.team, Carolina Panthers
Carolina Panthers, american_football.football_team.historical_coaching_staff, m.04xg_yc
Trevor Matich, people.person.nationality, United States of America
David Evans, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Steve Riley
Jamey Richard, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Tampa Bay Buccaneers, 2009-10-18
g.121g7ncl, american_football.football_player.position_s, Nick Buoniconti
Carolina Panthers, american_football.football_team.home_games, Atlanta Falcons at Carolina Panthers, 2008-09-28
Al Blozis, people.person.nationality, United States of America
Tootie Robbins, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.league, m.0crtfg9
g.121g7ncl, american_football.football_player.position_s, Ken Bowman
Pat Howell, people.person.nationality, United States of America
m.0_3r22s, sports.sports_team_coach_tenure.team, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Parker Graham
g.121g7ncl, american_football.football_player.position_s, Todd Weiner
Clyde Brock, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Andre Gurode
g.121g7ncl, american_football.football_player.position_s, Ken Iman
Robert Kava, people.person.nationality, United States of America
National Football Conference, american_football.football_conference.teams, Carolina Panthers
g.121g7ncl, american_football.football_player.position_s, Bob Penchion
g.121g7ncl, american_football.football_player.position_s, Aaron Taylor
g.121g7ncl, american_football.football_player.position_s, Rocky Freitas
Donald Stephenson, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.league, m.0crt99h
g.121g7ncl, american_football.football_player.position_s, Terry Tausch
Carolina Panthers, american_football.football_team.home_games, Buffalo Bills at Carolina Panthers, 2009-10-25
g.121g7ncl, american_football.football_player.position_s, Tony Ugoh
Fred Quillan, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, Philadelphia Eagles at Carolina Panthers, 2009-09-13
g.121g7ncl, american_football.football_player.position_s, Bob Yates
Andre Gurode, people.person.nationality, United States of America
Ernie McMillan, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, New Orleans Saints at Carolina Panthers, 2008-10-19
Walter Barnes, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Al Bemiller
Jim Ray Smith, people.person.nationality, United States of America
Carolina Panthers, sports.sports_team.season_record, m.075fhpw
Daniel Whitaker, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.home_games, Tampa Bay Buccaneers at Carolina Panthers, 2008-12-08
Rocky Freitas, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Minnesota Vikings, 2008-09-21
g.121g7ncl, american_football.football_player.position_s, Harry Smith
g.121g7ncl, american_football.football_player.position_s, John H. Outland
g.121g7ncl, american_football.football_player.position_s, Michael Oher
Billy Shields, people.person.nationality, United States of America
Brad Benson, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Walter Barnes
Carolina Panthers, sports.professional_sports_team.draft_picks, m.05bv86v
Aaron Taylor, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Dave Fiore
Will Wilson, people.person.nationality, United States of America
Carolina Panthers, american_football.football_team.away_games, Carolina Panthers at Green Bay Packers, 2008-11-30
Michael Oher, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Kendall Gammon
g.121g7ncl, american_football.football_player.position_s, Tootie Robbins
g.121g7ncl, american_football.football_player.position_s, Tom Rafferty
Carolina Panthers, sports.professional_sports_team.owner_s, Jerry Richardson
g.121g7ncl, american_football.football_player.position_s, Brad Badger
g.121g7ncl, american_football.football_player.position_s, Braxston Cave
Tyrone McGriff, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Tom Cable
Randall McDaniel, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, John Greco
Carolina Panthers, sports.sports_team.colors, Silver
g.121g7ncl, american_football.football_player.position_s, Jeff Blackshear
David Mims, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Robert Kava
John Madden, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Ryan Gibeley
g.121g7ncl, american_football.football_player.position_s, David Mims
Julian Vandervelde, people.person.nationality, United States of America
Ryan Miller, people.person.nationality, United States of America
g.121g7ncl, american_football.football_player.position_s, Ephraim Salaam

Answer: George Seifert