William Stephen "Bill" Arnsparger (born December 16, 1926) is a former American college and professional football coach.

Arnsparger was born in Paris, Kentucky in 1926. He attended Paris High School, and became connected with the school's longtime football and basketball coach, Blanton Collier. The relationship would have a major impact on his future career.

After serving in the United States Marines during World War II, Arnsparger attended Miami University in Oxford, Ohio, where he was a member of Sigma Chi Fraternity (Alpha Chapter). After graduating from Miami in January 1950, Arnsparger remained in Oxford to work as an assistant for the Miami football team during the 1950 season.

On February 21, 1951, Arnsparger was hired by new head coach Woody Hayes of Ohio State University in Columbus, Ohio. He served as the Buckeyes' line coach until 1954.

In 1954, Arnsparger re-connected with Collier, who had been hired as head football coach at the University of Kentucky in Lexington, Kentucky. Arnsparger remained at Kentucky for the next eight years until Collier was fired on January 2, 1962. During the 1959 season, he was joined on the coaching staff by a young coach who had served at the University of Virginia the previous year. That coach was Don Shula, with the two coaches forging a strong bond that would tie them for much of the next quarter century.

Donald Francis "Don" Shula (born January 4, 1930) is a former American football cornerback and coach.

He is best known as coach of the Miami Dolphins, the team he led to two Super Bowl victories, and to the National Football League's only perfect season. Shula was named 1993 Sportsman of the Year by Sports Illustrated. He currently holds the NFL record for most career wins with 347. Shula only had two losing seasons in his 36-year career of coaching in the NFL. He has been head coach for a record six Super Bowls. In his first, he set the record for the longest period to be shut out (not scoring until 3:19 remaining). His next Super Bowl he set the record for the lowest points by any team (with only one field goal). The very next year he turned that all around during his perfect season, breaking his record of longest period with a shut out, this time with him on the winning side (not giving up any points until 2:07 remaining). As of 2012, Shula's perfect NFL season remains unmatched, and his three Super Bowl records and total NFL wins remain unbroken.