Each Wednesday throughout the season we'll identify one player, coach or area of the team that is most under the microscope. This week, DEs Julius Peppers and Israel Idonije are the choice.
Every player on Bears' defense is going to need to be at his best this week against Philadelphia's offense, which averages an NFC-best 28.4 points per game, but Peppers has the ability to affect the game like few other players can, and the Bears are going to need him and Idonije to play smart and under control.
When Eagles QB Michael Vick can't find an open receiver, he'll tuck the ball and take off running if pass rushers don't have him cornered. Vick is completing passes at a higher rate than he did earlier in his career, but he still does damage with his legs — he gains 6.8 yards per carry and has five rushing touchdowns in seven games.
If Peppers or Idonije break containment trying to make a sack, Vick could quickly find a seam and break free for a lengthy gain after linebackers have dropped back into coverage.
Vick can rack up first downs with those scrambles, and Peppers and Idonije have to be careful not to give Vick a running lane that he can't resist passing up.