PHOTO: Pro Football Hall of Famer Dan Dierdorf and Don Coryell in St. Louis. By TOM SHANAHAN The NFL largely remembers Don Coryell for his dynamic Air Coryell teams in San Diego. Dan Dierdorf begs to differ. “We saw him first in St. Louis,” said Dierdorf. Coryell’s innovative passing game with the old St. Louis Cardinals was sandwiched between equally novel periods throwing the ball at San Diego State (1961-72) and during his San Diego homecoming with the…