Following the AFL–NFL merger, the Bills were generally mediocre in the 1970s, but featured All-Pro running back O. J. Simpson. After being pushed to the brink of failure in the mid-1980s, the collapse of the United States Football League and a series of highly drafted players such as Jim Kelly (who initially played for the USFL instead of the Bills), Thurman Thomas, Bruce Smith and Darryl Talley allowed the Bills to rebuild into a perennial contender in the late 1980s through the mid-1990s, a period in which the team won four consecutive AFC Championships; the team nevertheless lost all four subsequent Super Bowls, records in both categories that still stand.