 Complete the following phrase:  Prior to , the NFL playoff sites were rotated and were not based on regular season record. In 1967, the hosts were the Capitol and Central division winners for the conference championships first round, and the Western Conference for the championship game. This gave home field advantage to the Central Division winner, the two-time defending NFL champion Green Bay Packers. The following years playoff hosts were Century, Coastal, and Eastern, respectively, and 1969 was like 1967. With the rotation system it was common for the host team to have an inferior record; it had occurred in four of the previous five NFL championship games 1962, 