The 1970 Cincinnati Bengals have been widely credited with bringing the West Coast Offense to the N.F.L. The team’s head coach, Paul Brown, and offensive coordinator (and future San Francisco 49ers head coach) Bill Walsh were faced with a challenge, as quarterback Virgil Carter was a smart player with a weak arm. Under Walsh’s tutelage, the Bengals operated a short-passing game that was effective in those run-heavy days of the N.F.L. A year later, Carter led the N.F.L. in completion percentage.
But that 1970 Cincinnati team is famous for another reason: Of the 158 teams from 1970 to 2014 that started an N.