Chris Johnson picking up new offense quickly

Titans RB Chris Johnson already feels comfortable with the team's new offense.  “I took the playbook home Friday, and I pretty much know the whole thing,’’ Johnson said. “The offense really is not too different. There are a couple of different wrinkles in it, but I pretty much know the whole thing.”  We're not worried about Johnson's comfort level in the offense, or his Week 1 workload.  The only concern is whether or not he's in game shape after missing all of training camp and preseason.  If he can make it through the first couple games without an injury, he should be in the clear.