Darren McFadden a good fit in zone scheme?

Raiders new OC Greg Knapp believes RB Darren McFadden is a good fit in his zone-blocking scheme.  "I'm excited to get back with him," Knapp said.  "He doesn't mess around when he runs. When he makes a cut, he's going north and south. And he has the ability to go the distance any time the ball is in his hands."  Knapp was with Oakland during McFadden's rookie year in 2008.  Run DMC averaged 4.4 yards per carry that season -- a solid number, but down from his 5.3-yard average over the past 2 years.  We'll be keeping a close eye on how he adjusts to the new system this offseason.