The challenge was always difficult. Eagles quarterback Michael Vick has the highest yards per carry average in NFL history. Running back LeSean McCoy is averaging six yards per carry this season and making comparisons to Barry Sanders not seem so blasphemous. Wide receiver DeSean Jackson is one of the best deep threats in the league. It was always tough for the Giants’ defense to stop players this fast but now the plays move even faster. Under first-year coach Chip Kelly the Eagles attack every 21.57 seconds taking the fewest time between snaps this season according to Football Outsiders. Facing an Eagles offense which has amassed the second-most total yards in the league (458.8 per game) and most yards per play (6.9) Giants defensive coordinator Perry Fewell said he isn’t worried about the unusually rapid pace since he started preparing for it when Kelly was hired. “It was something that was new coming into the [NFL] and so obviously you wanted to go and prepare for something that was new and challenging” Fewell said. “Because of the skill level. … Those skill levels are really good so when you add that with the things that you’re doing now it’s an offense that can move the football all over the field.” Though Fewell has been watching tape of Kelly’s old Oregon offenses Giants linebacker Spencer Paysinger has more familiarity with Kelly’s style having seen it countless times while playing for the Ducks from 2007-10. The 25-year-old believes the Giants have done a great job mimicking the tempo in practice but with about half of the available players in practice a college team would have Paysinger said there are certain logistical challenges to duplicating an accurate model. “Here you can’t really mimic that speed in practice because guys need their legs for Sunday so you don’t want to bog them down Monday Tuesday Wednesday” said Paysinger.