Jay Ajayi has an NFC-best 6.4 yards per carry since arriving in Philly. What he doesn't have is a full-time job. Eagles head coach Doug Pederson said Wednesday he doesn't play on making Ajayi the Eagles' featured running back down the stretch and into the playoffs, despite Ajayi's recent production. "It's a fine line a little bit," Pederson said. "Right now, I don't want to fix something or do something if it's not really broken." The Eagles have used a running back-by-committee approach all year, and it's served them well. But Ajayi has separated himself the last few weeks. He's had a higher average than LeGarrette Blount in five of six games he's played, and his 6.4 rushing average since his Eagles' debut in early November is highest among all NFC running backs during that span (and second only to Cam Newton in the conference). Overall, the Eagles' running game hasn't been quite so effective the last few weeks. After averaging 147 rushing yards and 4.7 yards per carry through the first 11 games of the year — both among the top-three in the NFL during that span — they're at 115 yards per game and 4.1 per carry against the Seahawks, Rams and Giants. Those figures rank 18th and 22nd in the league. Blount is averaging just 2.2 yards per carry in those three games. Corey Clement continues to produce when he gets the ball — he's averaging 4.3 yards per carry — and Kenjon Barner had a big 18-yard gain against the Giants Sunday.