One time, the St. Louis Rams were “The Greatest Show on Turf.” Led by QB Kurt Warner, RB Marshall Faulk and standout receivers Issac Bruce and Tory Holt, they had an offense like no other. However, things change. Warner is now leading a high-powered Arizona Cardinals (10-5) into playoff gear while his former team, the Rams, are in a rebuilding stage. Witness Warner’s 100th TD pass as a Cardinal, c…