FILE - In this Nov. 29, 1981, file photo, San Francisco 49ers coach Bill Walsh is carried off the field by his team after beating the New York Giants 17-10 to clinch the division title at Candlestick Park in San Francisco. A pair of Super Bowl winning teams that launched dynasties in San Francisco and New England highlighted the list of the NFL's greatest teams, numbers 31-100. Coming in at No. 31 was the 1981 San Francisco 49ers led by coach Bill Walsh and quarterback Joe Montana. (AP Photo/Paul Sakuma, File)