Peyton Manning might be the greatest quarterback to ever strap on a helmet, however, like all QBs, he isn't without his weaknesses.
He has two flaws that the Jets need to attack. 1) He doesn't have the strongest arm in the world and he can't move around outside the pocket.
He has plenty of arm to make all the throws, but he relies on precision, touch, and accuracy more than pure arm strength and can't lazer balls in between defenders like, say, a Brett Favre. In order to take advantage of the fact that he cannot lazer balls into tight spots, the Jets need to flood the field with defenders and force Peyton to try to squeeze the ball into a tight area, with the goal being that he turns the balls over.
How to do that? Easy, drop 9 or 10 people into coverage. Peyton, like all QBs, has an internal clock. He can't move outside the pocket and will throw the ball before his internal clock hits five or six seconds. He's not going to scramble around the back field looking for someone to get open becuase, simply put, he's doesn't move well enough.
On top of that, the Jets can drop eight people into coverage, and overload Peyton's back-side by only rushing three. Blitzing Peyton won't work. They need to have as many people in coverage and find creative ways to make it seem like there are a lot of people coming, even though they're only sending 3-4 people, at most.
This strategy, when employed by the Ravens last week, forced Peyton into an interception courtesy of Ed Reed. This strategy basically ruined Chad Pennington's career. I'm not comparing Chad to Peyton, simply pointing out that it really creates NIGHTMARES on QB's who aren't blessed with GREAT arms and mobility.