"They both have got a real unique skill set that not a lot of people have in this game," coach Chip Kelly said. "It's a credit to those guys in terms of what we've asked them to do and how they have been able to flourish in what we are doing here."
It's also a credit to Kelly. The offense is 77 yards away from breaking the franchise record for single-season net yards. McCoy is 37 yards away from breaking Wilbert Montgomery's 1979 franchise record of 1,512 rushing yards in a season. Jackson is 106 yards away from breaking Mike Quick's 1983 record of a 1,409 receiving yards in a season.
Quarterback Nick Foles will set the franchise record for quarterback rating in a season. He has a 118.8 rating to date. He also has the lowest interception percentage in franchise history (0.7 percent).
"It's just so much to worry about," McCoy said. "Nick playing the way he's playing, the way we're running the ball, DeSean Jackson being a special talent. When you're a defense playing the Eagles, there's so much to watch out for. There's so many different looks to give a team."
Jackson has had a redemptive 2013 season after two seasons of fewer than 1,000 receiving yards. Jackson has been used in creative ways by this coaching staff, sometimes lining up in the backfield or going in motion to try to create a mismatch.
He's had his big games - Jackson has three performances with at least 150 yards - but he has also been more consistent than in past years. Jackson has had at least four catches in all but four games this season. His 79 receptions are 15 more than any season of his career, and he's not relying entirely on long gains. In Jackson's previous two 1,000-yard seasons, he averaged 20.3 yards per catch. In 2013, he is at 16.5 yards per catch.
"I just think they do a great job of putting me in spots to be productive in the offense," Jackson said, later adding: "Everything happened the way we want it to happen."
Still, the best part of the offense has been explosive plays. The Eagles lead the NFL with 92 plays of 20 or more yards, which is 17 more than the next-closest team. It's also four behind the 2001 Rams, whose 96 plays of 20 or more yards is the most by any team since the statistic began being recorded in 1995.
"Coach Kelly just finds ways to get his playmakers the ball in open space," McCoy said. "And I think the one-on-one opportunities is when we kind of succeed the best."