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?

1976 Patriots: From 3-11 to 11-3

Dick Raphael-USA TODAY Sports

The Patriots suffered through many lean seasons. One was 1975 when they went 3-11 under former Oklahoma coach Chuck Fairbanks. The next year, they flipped their mark and went 11-3. The season ended with a 24-21 Divisional round loss to the Raiders.

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