text: With Kenney and Blackledge both on the roster, starting QB Steve Fuller was traded to the Los Angeles Rams on August 19. Kenney earned a Pro Bowl berth after racking up a franchise-record 4,348 passing yards, while wide receiver Carlos Carson hauled in 80 passes for 1,351 yards. Despite the team's high-flying passing game, head coach John Mackovic had trouble finding a suitable replacement for Joe Delaney and the running back position. The highest scoring contest in franchise history took place as the Chiefs and Seattle Seahawks combined for 99 points in a wild, 51–48 overtime loss at the Kingdome. A meager crowd of 11,377 attended the club's season-ending 48–17 win against Denver on December 18, the smallest attendance figure ever for a Chiefs game at Arrowhead as the club finished the year at 6–10.
  1984
  Pro Bowl safety Gary Barbaro became the most notable Chiefs player to defect to the rival United States Football League, signing with the New Jersey Generals on February 2 after sitting out the entire 1983 campaign in a contract dispute. Barbaro's departure and the trade of cornerback Gary Green began a youth movement that produced the most vaunted secondary in team history. Cornerbacks Kevin Ross and Albert Lewis, and safeties Deron Cherry and Lloyd Burruss accounted for a combined 13 Pro Bowl appearances for the Chiefs in the years to come.
  All-America defensive tackle Bill Maas and offensive tackle John Alt were both selected in the first round of the 1984 NFL Draft. Maas was named NFL Defensive Rookie of the Year, while Alt eventually became the cornerstone of the club's offensive line later in the decade. Kansas City's defense registered a team-record 11.0 sacks in a 10–6 win against Cleveland on September 30, coming one sack shy of the NFL single-game record.