Oakland Raiders running back Darren McFadden (20) gets past Kansas City Chiefs safety Jarrad Page (44) during a NFL football game between...

Oakland Raiders running back Darren McFadden (20) during the second half of an NFL football game between the Kansas City Chiefs and...

September 14, 2009; Oakland, CA, USA; Oakland Raiders running back Darren McFadden (20) is tackled by San Diego Chargers inside linebacker Stephen Cooper (54) during the first quarter...

OAKLAND, CA - AUGUST 29: Running back Darren McFadden #20 of the Oakland Raiders runs the ball against Pierson Prioleau #31 of the New Orleans...

OAKLAND, CA - DECEMBER 21: Running back Darren McFadden #20 of the Oakland Raiders runs upfield in a 27-16 win over the Houston Texans...

Oakland Raiders running back Darren McFadden runs during NFL football training camp in Napa, Calif., Thursday, July 30, 2009

SINGLE/DOUBLE WING

...the fakes. But "solved" may be a stretch. The "Wild Hog" offense at Arkansas, when tailback Darren McFadden took snaps from center, and the subsequent imitators, are direct descendants of the single-wing

OAKLAND - DECEMBER 21: Running back Darren McFadden #20 of the Oakland Raiders heads downfield against the Houston Texans during their game on December...

...the Packers 20-17. (Photo by Joe Robbins/Getty Images) OAKLAND, CA - DECEMBER 21: Running back Darren McFadden #20 of the Oakland Raiders runs upfield in a 27-16 win over the Houston Texans...

...the Broncos 30-23. (Photo by Doug Pensinger/Getty Images) OAKLAND, CA - DECEMBER 21: Running back Darren McFadden #20 of the Oakland Raiders runs the ball during the game against the Houston Texans at...

Dec 21, 2008; Oakland, CA, USA; Oakland Raiders running back Darren McFadden (20) heads up field during the Raiders' 27-16 victory over the Houston Texans at the...

May 8, 2009; Alameda, CA, USA; Oakland Raiders fullback Marcel Reece (45) and running back Darren McFadden (20) during minicamp at the Raiders practice facility

May 8, 2009; Alameda, CA, USA; Oakland Raiders fullback Marcel Reece (45) and running back Darren McFadden (20) during minicamp at the Raiders practice facility

Sep 21, 2008, Orchard Park, NY, USA; Oakland Raiders running back Darren McFadden (20) heads up field during the Raiders 24-23 loss to the Buffalo Bills at Ralph...

Sep 8, 2008; Oakland, CA, USA; Oakland Raiders running back Darren McFadden (20) heads up field during 41-14 loss to the Denver Broncos at McAfee Coliseum. Mandatory...