"Obviously, meetings run a little long when you've got things to fix," Nolan said, one day after the 49ers' 30-21 loss to the New England Patriots. "We'll spend most of the day trying to correct the problems that occurred yesterday and cost us the game."

These are turning into anxious times for the 49ers. They have lost two consecutive games and have difficult upcoming tests against the Philadelphia Eagles and New York Giants.

"There are a lot of things we have to work on," Nolan said. "We have a lot of work. We have things to do."

The 49ers have experienced issues on both sides of the ball.

Defensively, they can't seem to get off the field. The 49ers continue to allow time-consuming drives. Offensively, the 49ers have experienced difficulty sustaining drives. The 49ers' offense ranks 28th in the NFL in third-down conversions, while the defense is 22nd.

One of the 49ers' weaknesses has been its rushing defense. The opposition is averaging 128.4 yards on the ground per game.

"When you're not winning and you're not playing as well as you'd like, you're looking for answers. And in the course of looking for answers, when you find some it's less frustrating," Nolan said.

"I believe the problems that we've had have been very identifiable. The players will recognize it and see that we can do better. We have to get those corrected and play better."