Former Detroit Lions Pro Bowl offensive tackle Lomas Brown said that the key to the Chicago Bears being successful on Monday night against the San Francisco 49ers is to make Jason Campbell comfortable.

The Bears announced Friday that Campbell will start for the concussed Jay Cutler.

"I think the thing that the team is going to have to do -- especially as an offense -- they’re going to have to make that young man feel comfortable," said Brown, an ESPN analyst. "What I mean by that is the offensive coordinator Mike Tice, the head coach Lovie Smith, they’re going to have to sit down and say, ‘Look, what we’re going to have to do is condense this playbook down to make Jason comfortable. We’re going to take some of his presnap reads away from him. We’re going to take the blitz reads away from him. We’re going to put that responsibility on our offense linemen. We don’t want him thinking about a lot of things.'

"Because you can tell, when a football player is out there thinking instead of reacting, he doesn’t play well. He’s slow, doesn’t get the block done, doesn’t make the catch, whatever it may be. So to me they have to make this young man feel as comfortable as possible and that’s condensing the playbook, taking some of his presnap reads out and letting him go out there and play."