49ers building one of biggest single-season turnarounds in NFL history

The current San Francisco 49ers team has done an amazing turnaround. Where do they rank when it comes to NFL history?

1981 Niners: From 6-10 to 13-3

Mike Powell /Allsport

Bill Walsh and the 1980 Niners did not find much good as they lost double-digit games. The Genius was able to instill his lessons into the team the following season and they went to win the Super Bowl.

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