However , the Hawkeyes ' success on the field dipped once again .
Under his direction , the Hawkeyes won conference championships in 1921 and 1922 , and recorded a school - record 20 - game winning streak from 1920 -- 1923 .
The Hawkeyes ' success on the field dipped once again .
Under his direction , the Hawkeyes won conference championships in 1921 and 1922 , and recorded a school - record 20 - game winning streak from 1920 -- 1923 .