Complex sentence: In 1917, the backfield of Everett Strupper, Joe Guyon, Al Hill, and Judy Harlan helped propel Heisman to his finest success, a 9--0 record and a national championship, the first for a Southern team.
Split into simpler sentences: In 1917, the backfield of Everett Strupper, Joe Guyon, Al Hill, and Judy Harlan helped propel Heisman to his finest success. The team posted a 9--0 record and a national championship, the first for a Southern team.