The path from an unheralded, undrafted free agent to the absolute standard-bearer of an NFL franchise is rarely traveled, but Jim Hart walked it for nearly two decades. Arriving out of Southern Illinois in 1966, Hart signed with the St. Louis Cardinals without a shred of fanfare. What followed was an eighteen-year demonstration of sheer durability, quiet toughness, and relentless aerial volume that fundamentally anchored the franchise's identity through the peak of the 1970s.
Hart did not have the aristocratic draft pedigree or the flashy athletic fame of his urban peers, but he had a powerful, fearless arm and sharp diagnostic skills. Playing behind a legendary offensive line led by Dan Dierdorf, he thrived as a pocket passer willing to take deep risks, trusting his quick processing to challenge defenses downfield. His most notable quality was his relentless durability; despite enduring physical punishment in the late 1960s, he consistently remained the starting quarterback, often absorbing hits to make crucial throws down the seam.
Hart’s career soared to new heights after head coach Don Coryell joined in 1973. With Coryell’s dynamic "Air Coryell" passing system, Hart became the perfect signal-caller for one of football’s most exciting offenses. Their partnership quickly proved successful in 1974, as Hart led several dramatic fourth-quarter comebacks, earning the team the nickname: the "Cardiac Cards.” That season, Hart threw for 2,411 yards and 20 touchdowns, helping the Cardinals achieve a 10-4 record and their first division title in nearly thirty years. His outstanding performance earned him the NFC Offensive Player of the Year award from UPI and his first of four straight Pro Bowl selections (1974–1977). From 1974 to 1976, Hart guided the Cardinals through three consecutive seasons with ten or more wins, including two NFC East titles, and orchestrated ten game-winning drives in the fourth quarter.
He maintained a stellar peak through the mid-1970s, guiding the franchise to an 11-3 record in 1975 and a 10-4 record in 1976. Although the postseason saw early, painful losses to NFC giants like Minnesota and Los Angeles, Hart’s status as a top-tier passer was undisputed. Even as the team aged and records declined later in the decade, Hart stayed the consistent force, achieving a career-high 3,121 passing yards in 1978.
By the time he ceded the starting job to Neil Lomax in the early 1980s, Hart had established numbers that shattered every passing threshold in franchise history. Over his 18 seasons in St. Louis (1966–1983), he threw for 34,639 yards and 209 touchdowns—marks that still stand as the absolute zenith of Cardinals passing records.
In 2017, Hart was selected to join the Cardinals Ring of Honor in 2017.