A weekly look at what the Cleveland Browns must fix:

The number, as they say, does not lie. The Browns' run defense is giving up 157.3 yards per game. No team in the league can win that way, and it's especially galling to coach Mike Pettine, who has seen this defensive system work in Buffalo, New York and Baltimore. "Disappointing," was Pettine's understatement for the run defense. The Browns have given up 11 runs of 10 yards or more, six of more than 20 and two of more than 30, which is a trend they'll have to stop when they go to Tennessee after the bye week.

Pettine said he breaks down the run defense on each play in three ways: technique, scheme or talent. If it's scheme, it's on the coaches to fix the calls or even take it out of the playbook. If it's technique, it must be addressed in practice. If it's talent, the coaches have to make a change, either in personnel or alignment to ensure the player is not asked to do something he can't. With the Browns, though, all three are issues.

"We need to get better in our defense across the board," Pettine said.

One way he will address this issue in the bye week is to have the offensive coaches break down and scout the team's defense as if it were playing a game against that unit. That will give a fresh set of eyes to the run defense, which might point to ways to improve it. Whatever happens, the run defense will be a major focus as the coaches spend their time working during the bye weekend.