The other X factor - Vince Young
The Titans' quarterback represents a unique threat, a quarterback equally capable of tormenting the Chargers with his arm or with his feet. Last Sunday against Houston Young burned his hometown team again, completing 21 of 31 passes for 248 yard and two touchdowns and rushing for 44 of his team's 153 ground yards.
"Vince is a guy that the whole team relies on, and they expect him to make plays," Chargers linebacker Shawne Merriman said. "He's going to be like the engine of that car. He's going to drive that car and point them in the right direction and try to help them win."
How do the Chargers contain him?
"First of all, you have to know what he does best, and that's throwing on the run and moving around in the pocket," Merriman said. "Having him alone allows the offense to do certain things that maybe you wouldn't be able to do with another quarterback. ... You have to watch a lot of film and see what kind of formations (they're in) and put a stop to it."
He was asked if a defense would think run first and adjust to the pass, or vice versa.
"You have to just read and react because of some of the things he can do," Merriman said. "He can drop fast, and if he doesn't see anybody, see a wide receiver, he can take off and run. He's just like a wide receiver with the ball, and you have to really pay attention to what you're about to get and really get ready for it."