Kennedy's long tenure was followed by another period of rapid turnover in coaches, with seven head coaches for KU in the next ten seasons. The most successful of these was Herman Olcott, who had a three-year tenure as head coach from 1915 to 1917, posting a record of 16–7–1 (). Basketball coach Phog Allen also served one year as head football coach during this era, with a record of 5–2–1 in 1920. Potsy Clark finally returned some stability to the position, serving as KU's head football coach for five seasons, from 1921 to 1925. Although Clark would later go on to find success as an NFL head coach, at KU he amassed a 16–17–6 record in his five seasons and left the school as the first coach with an overall losing record since John Outland in 1901. Football innovator Bill Hargiss – one of the first in the sport to use the huddle and forward pass – was hired as KU head coach in 1928. Hargiss coached the team to a Big Six championship in 1930, but could not sustain success and was fired only two games into the 1932 season, after the Jayhawks lost at home to Oklahoma, 21–6. Hargiss recorded an overall mark of 18–16–2 () as KU head coach. Through the end of Hargiss's tenure in 1932 the Jayhawks football program had registered a great deal of success, with only four of the first twenty coaches at KU suffering losing records. Beginning with Hargiss's successor Adrian Lindsey's 23–30–8 mark at KU, four of the next seven coaches at KU would post losing records.