• An offense that has ranked in the bottom half of the NFL for nine of the past 10 seasons.

"I can say this about our offense: We're going to be tough, we're going to be physical, we're going to be disciplined and we're going to play really hard," Harbaugh said. "If we do those things, we'll be just fine."

• An uncertain quarterback situation with banged-up Steve McNair, inconsistent Kyle Boller and inexperienced Troy Smith.

"It does start with the quarterback in the NFL," Harbaugh said. "We have a good quarterback in Philadelphia, and that's a big part of the success up there. Whether it's someone on the roster right now that can be developed or whether it's someone we have to go out and get, I know we're shoulder-deep in that evaluation already before I even get here. I'm ready to jump in and get to work on that."

• The image that Ravens players are out of control and need discipline.

"When you talk about discipline in football, you're talking about guys making good choices in critical moments and being poised," he said. "We've got smart guys on this football team, and I think there is a plan in place for getting your team to that point. That's part of the process, and that starts [today]."

The Ravens decided by late Friday that he could tackle these problems.

Their search committee agreed that he was the choice but wanted to ask him another round of questions before offering him the job.

Before anyone from the committee spoke, Harbaugh said: "I don't have all the answers, but I think I can be your head coach. And I think with the people here, I can be a great head coach."

At that point, Bisciotti leaned forward and said: "Then, you can be our head coach."

About 19 hours later, with his wife and parents sitting in the front row of the team auditorium, Harbaugh officially became the Ravens' head coach.

"I'm a football coach and have been a football coach for a long time," Harbaugh said. "I'm proud to be the football coach of the Baltimore Ravens. This is an opportunity of a career, and it's a dream of ours that we've had for a long time."