...The founder and longtime owner of the Cards, Chris O'Brien, could have claimed the 1925 NFL title when their top competitor in the standings, the Pottsville Maroons, was suspended from the NFL for playing an exhibition game in Philly, in territory that was allocated to another NFL team. Pottville played...a team of Notre Dame All-Stars (former ND players). See the link and scroll down for the rosters from that super-trivial game.
art fern, my dad grew up a Chicago Cardinals fan, and was never completely satisfied over their move to St. Louis in 1960. "Halas drove 'em out of town!" The twist: the Cards' founder, Chris O'Brien, was in Chicago first; when Halas wanted to move the Staleys to Chicago in 1922, he had to get permission from O'Brien. Hope they paid him enough!