"You got to do extra studying, you have to prepare differently, this mental aspect of the game," linebacker Derrick Johnson told NFL Media's Stacey Dales. "It's not a regular pro-style offense."
So how much extra film do you have to watch?
"Double the amount," Johnson said. "When you're at home, instead of going over 30 minutes or an hour, you're gonna look at about two hours."
Thursday night's matchup between the Kansas City Chiefs and Philadelphia Eagles will receive plenty of attention because of the storylines surrounding Andy Reid and his return to the city. But the Xs and Os are even more fascinating. The Chiefs have had one of the best defenses in the league early this season. The Eagles have an offense unlike anything we've seen at the pro level. We previewed the game on our latest podcast. Here's what else we'll be watching for:
- Kansas City broke out a decent amount of read-option and pistol formation plays against the Dallas Cowboyslast week. They worked. Alex Smith's running keyed one of the team's two touchdown drives. Look for Andy Reid to build this game around Jamaal Charles' running. Smith's legs will be a factor too.
- The concern with the Chiefs' offense: It's not explosive enough to put up big points against a shaky defense like in Philadelphia. Smith is not throwing the ball outside the numbers much. He had one key 31-yard throw last week to Donnie Avery, but that play has been the exception on a dink-and-dunk offense. Charles leads the team in receptions.
- This is easily the best defense that the high-flying Eagles have faced so far. Cornerback Brandon Flowers is a tough matchup for DeSean Jackson. Nose tackle Dontari Poe is having a breakout season so far, a great inside complement to outside pass rushers Justin Houston and Tamba Hali. Safety Eric Berry looks healthy again. Johnson, an inside linebacker, is one of the best at his position.
Even the team's depth is impressive. Rotational linemen like Mike DeVito and Tyson Jackson are solid. New defensive coordinator Bob Sutton has been a lot more creative using all this talent than Romeo Crennel was last season. They will test Michael Vick and company, but they also won't be able to substitute much because the Eagles are tied for the league lead in players per second on offense. (They run a play every 23.2 seconds.)
- The scariest part about the Eagles' offense is how many plays they have left on the field. Michael Vick -- the oldest player on the Eagles' roster -- set a career high in passing yards in Week 2 even though the team held the ball under 20 minutes. The Eagles just missed three more big plays that would have made their numbers ridiculous against San Diego.
Vick is not afraid to pull the trigger on deep passes. He's making the right reads in Kelly's offense, even if he's missing a few throws. He chooses what option to go with after the snap, and the right option last week was a whole lot of vertical passes. The Chiefs have a very talented secondary that will test Philadelphia's receiver depth.
After all, how can you watch double the film in only half a week?