CHARLOTTE, N.C. -- Is "Double Trouble" back? If anybody on the Carolina Panthers' coaching staff knows, it would be running backs coach Jim Skipper. Skipper was here in 2009 when DeAngelo Williams and Jonathan Stewart became the first running backs from the same team to rush for more than 1,100 yards each in the same season. Everybody else on the Carolina coaching staff has to watch film to appreciate just how potent this one-two punch was for a three-year stretch before Stewart began having injuries that limited him to only 15 games the past two seasons.via - NFL Nation