Kansas City Chiefs assistant coach history
Tommy O'Boyle
O'Boyle was the assistant coach for the Kansas City Chiefs in the 1966-1974 seasons, a total of nine years. O'Boyle's record as the team's assistant coach was 80-40-6, making him the second-most successful assistant coach in Kansas City Chiefs history. The team made it to the playoffs four times (1966, 1968-1969, 1971) and had a 4-3 record under Coach O'Boyle in playoff games. In 1966, the Kansas City Chiefs faced off against the Green Bay Packers in Super Bowl I and the Chiefs, under the direction of head coach Hank Stram, lost 10-35. In 1969, the Kansas City Chiefs faced off against the Minnesota Vikings in Super Bowl IV and the Chiefs, under the direction of head coach Hank Stram, won 23-7.
Morton J. "Chuck" Mills
Mills was the assistant coach for the Kansas City Chiefs in the 1966 season. Mills' record as the team's assistant coach was 11-2-1, making him the most successful assistant coach in Kansas City Chiefs history. The team made it to the playoffs one time (1966) and had a 1-1 record under Coach Mills in playoff games. In 1966, the Kansas City Chiefs faced off against the Green Bay Packers in Super Bowl I and the Chiefs, under the direction of head coach Hank Stram, lost 10-35.
Kansas City Chiefs assistant coach record
| Coach | Years | Record | Win percentage | Playoff record |
|---|---|---|---|---|
| Tommy O'Boyle | 1966-1974 | 80-40-6 | 65.9% | 4-3 |
| Morton J. "Chuck" Mills | 1966 | 11-2-1 | 82.1% | 1-1 |
Kansas City Chiefs assistant coach facts
- Tommy O'Boyle and Morton J. "Chuck" Mills was the first assistant coach in Chiefs history in 1966.
- Tommy O'Boyle coached the most seasons as the Chiefs's assistant coach at nine seasons.
- Tommy O'Boyle was the last coach to hold the position of assistant coach, leaving the role after the 1974 season.