 In 1975 and 1977, at the behest of then-Commissioner Pete Rozelle, the St. Louis Cardinals replaced Dallas as a host team (Dallas then hosted St. Louis in 1976).Although the Cardinals, at the time known as the "Cardiac Cards" due to their propensity for winning very close games, were a modest success at the time, they were nowhere near as popular nationwide as the Cowboys, who were regular Super Bowl contenders during this era.This, combined with St. Louis's consistently weak attendance, a series of ugly Cardinals losses in the three-game stretch, and opposition from the Kirkwood–Webster Groves Turkey Day Game (a local high school football contest) led to Dallas resuming regular hosting duties in 1978; it was then, after Rozelle asked Dallas to resume hosting Thanksgiving games, that the Cowboys requested (and received) an agreement guaranteeing the Cowboys a spot on Thanksgiving Day forever.