The 49ers were rolling when they went to Tennessee on Thursday night to face the Titans. Consecutive wins over the Bengals and Falcons had them at 8-6 and eyeing a possible 11-win finish after their dismal start to the year. Then they stumbled in Nashville and dropped a tough one to the Titans 20-17.
So what happened to the once red-hot 49ers? We have a few takeaways: